data_labeling_client.go

// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Code generated by protoc-gen-go_gapic. DO NOT EDIT.

package datalabeling

import (
	"bytes"
	"context"
	"fmt"
	"io"
	"math"
	"net/http"
	"net/url"
	"time"

	datalabelingpb "cloud.google.com/go/datalabeling/apiv1beta1/datalabelingpb"
	"cloud.google.com/go/longrunning"
	lroauto "cloud.google.com/go/longrunning/autogen"
	longrunningpb "cloud.google.com/go/longrunning/autogen/longrunningpb"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/googleapi"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	gtransport "google.golang.org/api/transport/grpc"
	httptransport "google.golang.org/api/transport/http"
	"google.golang.org/grpc"
	"google.golang.org/grpc/codes"
	"google.golang.org/protobuf/encoding/protojson"
	"google.golang.org/protobuf/proto"
)

var newClientHook clientHook

// CallOptions contains the retry settings for each method of Client.
type CallOptions struct {
	CreateDataset            []gax.CallOption
	GetDataset               []gax.CallOption
	ListDatasets             []gax.CallOption
	DeleteDataset            []gax.CallOption
	ImportData               []gax.CallOption
	ExportData               []gax.CallOption
	GetDataItem              []gax.CallOption
	ListDataItems            []gax.CallOption
	GetAnnotatedDataset      []gax.CallOption
	ListAnnotatedDatasets    []gax.CallOption
	DeleteAnnotatedDataset   []gax.CallOption
	LabelImage               []gax.CallOption
	LabelVideo               []gax.CallOption
	LabelText                []gax.CallOption
	GetExample               []gax.CallOption
	ListExamples             []gax.CallOption
	CreateAnnotationSpecSet  []gax.CallOption
	GetAnnotationSpecSet     []gax.CallOption
	ListAnnotationSpecSets   []gax.CallOption
	DeleteAnnotationSpecSet  []gax.CallOption
	CreateInstruction        []gax.CallOption
	GetInstruction           []gax.CallOption
	ListInstructions         []gax.CallOption
	DeleteInstruction        []gax.CallOption
	GetEvaluation            []gax.CallOption
	SearchEvaluations        []gax.CallOption
	SearchExampleComparisons []gax.CallOption
	CreateEvaluationJob      []gax.CallOption
	UpdateEvaluationJob      []gax.CallOption
	GetEvaluationJob         []gax.CallOption
	PauseEvaluationJob       []gax.CallOption
	ResumeEvaluationJob      []gax.CallOption
	DeleteEvaluationJob      []gax.CallOption
	ListEvaluationJobs       []gax.CallOption
}

func defaultGRPCClientOptions() []option.ClientOption {
	return []option.ClientOption{
		internaloption.WithDefaultEndpoint("datalabeling.googleapis.com:443"),
		internaloption.WithDefaultEndpointTemplate("datalabeling.UNIVERSE_DOMAIN:443"),
		internaloption.WithDefaultMTLSEndpoint("datalabeling.mtls.googleapis.com:443"),
		internaloption.WithDefaultUniverseDomain("googleapis.com"),
		internaloption.WithDefaultAudience("https://datalabeling.googleapis.com/"),
		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
		internaloption.EnableJwtWithScope(),
		option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
			grpc.MaxCallRecvMsgSize(math.MaxInt32))),
	}
}

func defaultCallOptions() *CallOptions {
	return &CallOptions{
		CreateDataset: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		GetDataset: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListDatasets: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		DeleteDataset: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ImportData: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		ExportData: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetDataItem: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListDataItems: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetAnnotatedDataset: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListAnnotatedDatasets: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		DeleteAnnotatedDataset: []gax.CallOption{},
		LabelImage: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		LabelVideo: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		LabelText: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		GetExample: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListExamples: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		CreateAnnotationSpecSet: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		GetAnnotationSpecSet: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListAnnotationSpecSets: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		DeleteAnnotationSpecSet: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		CreateInstruction: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		GetInstruction: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListInstructions: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		DeleteInstruction: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetEvaluation: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		SearchEvaluations: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		SearchExampleComparisons: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		CreateEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		UpdateEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		GetEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		PauseEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		ResumeEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		DeleteEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListEvaluationJobs: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.DeadlineExceeded,
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
	}
}

func defaultRESTCallOptions() *CallOptions {
	return &CallOptions{
		CreateDataset: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		GetDataset: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		ListDatasets: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		DeleteDataset: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		ImportData: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		ExportData: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		GetDataItem: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		ListDataItems: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		GetAnnotatedDataset: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		ListAnnotatedDatasets: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		DeleteAnnotatedDataset: []gax.CallOption{},
		LabelImage: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		LabelVideo: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		LabelText: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		GetExample: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		ListExamples: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		CreateAnnotationSpecSet: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		GetAnnotationSpecSet: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		ListAnnotationSpecSets: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		DeleteAnnotationSpecSet: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		CreateInstruction: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		GetInstruction: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		ListInstructions: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		DeleteInstruction: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		GetEvaluation: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		SearchEvaluations: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		SearchExampleComparisons: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		CreateEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		UpdateEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		GetEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		PauseEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		ResumeEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
		},
		DeleteEvaluationJob: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
		ListEvaluationJobs: []gax.CallOption{
			gax.WithTimeout(30000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        30000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusGatewayTimeout,
					http.StatusServiceUnavailable)
			}),
		},
	}
}

// internalClient is an interface that defines the methods available from Data Labeling API.
type internalClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	CreateDataset(context.Context, *datalabelingpb.CreateDatasetRequest, ...gax.CallOption) (*datalabelingpb.Dataset, error)
	GetDataset(context.Context, *datalabelingpb.GetDatasetRequest, ...gax.CallOption) (*datalabelingpb.Dataset, error)
	ListDatasets(context.Context, *datalabelingpb.ListDatasetsRequest, ...gax.CallOption) *DatasetIterator
	DeleteDataset(context.Context, *datalabelingpb.DeleteDatasetRequest, ...gax.CallOption) error
	ImportData(context.Context, *datalabelingpb.ImportDataRequest, ...gax.CallOption) (*ImportDataOperation, error)
	ImportDataOperation(name string) *ImportDataOperation
	ExportData(context.Context, *datalabelingpb.ExportDataRequest, ...gax.CallOption) (*ExportDataOperation, error)
	ExportDataOperation(name string) *ExportDataOperation
	GetDataItem(context.Context, *datalabelingpb.GetDataItemRequest, ...gax.CallOption) (*datalabelingpb.DataItem, error)
	ListDataItems(context.Context, *datalabelingpb.ListDataItemsRequest, ...gax.CallOption) *DataItemIterator
	GetAnnotatedDataset(context.Context, *datalabelingpb.GetAnnotatedDatasetRequest, ...gax.CallOption) (*datalabelingpb.AnnotatedDataset, error)
	ListAnnotatedDatasets(context.Context, *datalabelingpb.ListAnnotatedDatasetsRequest, ...gax.CallOption) *AnnotatedDatasetIterator
	DeleteAnnotatedDataset(context.Context, *datalabelingpb.DeleteAnnotatedDatasetRequest, ...gax.CallOption) error
	LabelImage(context.Context, *datalabelingpb.LabelImageRequest, ...gax.CallOption) (*LabelImageOperation, error)
	LabelImageOperation(name string) *LabelImageOperation
	LabelVideo(context.Context, *datalabelingpb.LabelVideoRequest, ...gax.CallOption) (*LabelVideoOperation, error)
	LabelVideoOperation(name string) *LabelVideoOperation
	LabelText(context.Context, *datalabelingpb.LabelTextRequest, ...gax.CallOption) (*LabelTextOperation, error)
	LabelTextOperation(name string) *LabelTextOperation
	GetExample(context.Context, *datalabelingpb.GetExampleRequest, ...gax.CallOption) (*datalabelingpb.Example, error)
	ListExamples(context.Context, *datalabelingpb.ListExamplesRequest, ...gax.CallOption) *ExampleIterator
	CreateAnnotationSpecSet(context.Context, *datalabelingpb.CreateAnnotationSpecSetRequest, ...gax.CallOption) (*datalabelingpb.AnnotationSpecSet, error)
	GetAnnotationSpecSet(context.Context, *datalabelingpb.GetAnnotationSpecSetRequest, ...gax.CallOption) (*datalabelingpb.AnnotationSpecSet, error)
	ListAnnotationSpecSets(context.Context, *datalabelingpb.ListAnnotationSpecSetsRequest, ...gax.CallOption) *AnnotationSpecSetIterator
	DeleteAnnotationSpecSet(context.Context, *datalabelingpb.DeleteAnnotationSpecSetRequest, ...gax.CallOption) error
	CreateInstruction(context.Context, *datalabelingpb.CreateInstructionRequest, ...gax.CallOption) (*CreateInstructionOperation, error)
	CreateInstructionOperation(name string) *CreateInstructionOperation
	GetInstruction(context.Context, *datalabelingpb.GetInstructionRequest, ...gax.CallOption) (*datalabelingpb.Instruction, error)
	ListInstructions(context.Context, *datalabelingpb.ListInstructionsRequest, ...gax.CallOption) *InstructionIterator
	DeleteInstruction(context.Context, *datalabelingpb.DeleteInstructionRequest, ...gax.CallOption) error
	GetEvaluation(context.Context, *datalabelingpb.GetEvaluationRequest, ...gax.CallOption) (*datalabelingpb.Evaluation, error)
	SearchEvaluations(context.Context, *datalabelingpb.SearchEvaluationsRequest, ...gax.CallOption) *EvaluationIterator
	SearchExampleComparisons(context.Context, *datalabelingpb.SearchExampleComparisonsRequest, ...gax.CallOption) *SearchExampleComparisonsResponse_ExampleComparisonIterator
	CreateEvaluationJob(context.Context, *datalabelingpb.CreateEvaluationJobRequest, ...gax.CallOption) (*datalabelingpb.EvaluationJob, error)
	UpdateEvaluationJob(context.Context, *datalabelingpb.UpdateEvaluationJobRequest, ...gax.CallOption) (*datalabelingpb.EvaluationJob, error)
	GetEvaluationJob(context.Context, *datalabelingpb.GetEvaluationJobRequest, ...gax.CallOption) (*datalabelingpb.EvaluationJob, error)
	PauseEvaluationJob(context.Context, *datalabelingpb.PauseEvaluationJobRequest, ...gax.CallOption) error
	ResumeEvaluationJob(context.Context, *datalabelingpb.ResumeEvaluationJobRequest, ...gax.CallOption) error
	DeleteEvaluationJob(context.Context, *datalabelingpb.DeleteEvaluationJobRequest, ...gax.CallOption) error
	ListEvaluationJobs(context.Context, *datalabelingpb.ListEvaluationJobsRequest, ...gax.CallOption) *EvaluationJobIterator
}

// Client is a client for interacting with Data Labeling API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// Service for the AI Platform Data Labeling API.
type Client struct {
	// The internal transport-dependent client.
	internalClient internalClient

	// The call options for this service.
	CallOptions *CallOptions

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient *lroauto.OperationsClient
}

// Wrapper methods routed to the internal client.

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *Client) Close() error {
	return c.internalClient.Close()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *Client) setGoogleClientInfo(keyval ...string) {
	c.internalClient.setGoogleClientInfo(keyval...)
}

// Connection returns a connection to the API service.
//
// Deprecated: Connections are now pooled so this method does not always
// return the same resource.
func (c *Client) Connection() *grpc.ClientConn {
	return c.internalClient.Connection()
}

// CreateDataset creates dataset. If success return a Dataset resource.
func (c *Client) CreateDataset(ctx context.Context, req *datalabelingpb.CreateDatasetRequest, opts ...gax.CallOption) (*datalabelingpb.Dataset, error) {
	return c.internalClient.CreateDataset(ctx, req, opts...)
}

// GetDataset gets dataset by resource name.
func (c *Client) GetDataset(ctx context.Context, req *datalabelingpb.GetDatasetRequest, opts ...gax.CallOption) (*datalabelingpb.Dataset, error) {
	return c.internalClient.GetDataset(ctx, req, opts...)
}

// ListDatasets lists datasets under a project. Pagination is supported.
func (c *Client) ListDatasets(ctx context.Context, req *datalabelingpb.ListDatasetsRequest, opts ...gax.CallOption) *DatasetIterator {
	return c.internalClient.ListDatasets(ctx, req, opts...)
}

// DeleteDataset deletes a dataset by resource name.
func (c *Client) DeleteDataset(ctx context.Context, req *datalabelingpb.DeleteDatasetRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteDataset(ctx, req, opts...)
}

// ImportData imports data into dataset based on source locations defined in request.
// It can be called multiple times for the same dataset. Each dataset can
// only have one long running operation running on it. For example, no
// labeling task (also long running operation) can be started while
// importing is still ongoing. Vice versa.
func (c *Client) ImportData(ctx context.Context, req *datalabelingpb.ImportDataRequest, opts ...gax.CallOption) (*ImportDataOperation, error) {
	return c.internalClient.ImportData(ctx, req, opts...)
}

// ImportDataOperation returns a new ImportDataOperation from a given name.
// The name must be that of a previously created ImportDataOperation, possibly from a different process.
func (c *Client) ImportDataOperation(name string) *ImportDataOperation {
	return c.internalClient.ImportDataOperation(name)
}

// ExportData exports data and annotations from dataset.
func (c *Client) ExportData(ctx context.Context, req *datalabelingpb.ExportDataRequest, opts ...gax.CallOption) (*ExportDataOperation, error) {
	return c.internalClient.ExportData(ctx, req, opts...)
}

// ExportDataOperation returns a new ExportDataOperation from a given name.
// The name must be that of a previously created ExportDataOperation, possibly from a different process.
func (c *Client) ExportDataOperation(name string) *ExportDataOperation {
	return c.internalClient.ExportDataOperation(name)
}

// GetDataItem gets a data item in a dataset by resource name. This API can be
// called after data are imported into dataset.
func (c *Client) GetDataItem(ctx context.Context, req *datalabelingpb.GetDataItemRequest, opts ...gax.CallOption) (*datalabelingpb.DataItem, error) {
	return c.internalClient.GetDataItem(ctx, req, opts...)
}

// ListDataItems lists data items in a dataset. This API can be called after data
// are imported into dataset. Pagination is supported.
func (c *Client) ListDataItems(ctx context.Context, req *datalabelingpb.ListDataItemsRequest, opts ...gax.CallOption) *DataItemIterator {
	return c.internalClient.ListDataItems(ctx, req, opts...)
}

// GetAnnotatedDataset gets an annotated dataset by resource name.
func (c *Client) GetAnnotatedDataset(ctx context.Context, req *datalabelingpb.GetAnnotatedDatasetRequest, opts ...gax.CallOption) (*datalabelingpb.AnnotatedDataset, error) {
	return c.internalClient.GetAnnotatedDataset(ctx, req, opts...)
}

// ListAnnotatedDatasets lists annotated datasets for a dataset. Pagination is supported.
func (c *Client) ListAnnotatedDatasets(ctx context.Context, req *datalabelingpb.ListAnnotatedDatasetsRequest, opts ...gax.CallOption) *AnnotatedDatasetIterator {
	return c.internalClient.ListAnnotatedDatasets(ctx, req, opts...)
}

// DeleteAnnotatedDataset deletes an annotated dataset by resource name.
func (c *Client) DeleteAnnotatedDataset(ctx context.Context, req *datalabelingpb.DeleteAnnotatedDatasetRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteAnnotatedDataset(ctx, req, opts...)
}

// LabelImage starts a labeling task for image. The type of image labeling task is
// configured by feature in the request.
func (c *Client) LabelImage(ctx context.Context, req *datalabelingpb.LabelImageRequest, opts ...gax.CallOption) (*LabelImageOperation, error) {
	return c.internalClient.LabelImage(ctx, req, opts...)
}

// LabelImageOperation returns a new LabelImageOperation from a given name.
// The name must be that of a previously created LabelImageOperation, possibly from a different process.
func (c *Client) LabelImageOperation(name string) *LabelImageOperation {
	return c.internalClient.LabelImageOperation(name)
}

// LabelVideo starts a labeling task for video. The type of video labeling task is
// configured by feature in the request.
func (c *Client) LabelVideo(ctx context.Context, req *datalabelingpb.LabelVideoRequest, opts ...gax.CallOption) (*LabelVideoOperation, error) {
	return c.internalClient.LabelVideo(ctx, req, opts...)
}

// LabelVideoOperation returns a new LabelVideoOperation from a given name.
// The name must be that of a previously created LabelVideoOperation, possibly from a different process.
func (c *Client) LabelVideoOperation(name string) *LabelVideoOperation {
	return c.internalClient.LabelVideoOperation(name)
}

// LabelText starts a labeling task for text. The type of text labeling task is
// configured by feature in the request.
func (c *Client) LabelText(ctx context.Context, req *datalabelingpb.LabelTextRequest, opts ...gax.CallOption) (*LabelTextOperation, error) {
	return c.internalClient.LabelText(ctx, req, opts...)
}

// LabelTextOperation returns a new LabelTextOperation from a given name.
// The name must be that of a previously created LabelTextOperation, possibly from a different process.
func (c *Client) LabelTextOperation(name string) *LabelTextOperation {
	return c.internalClient.LabelTextOperation(name)
}

// GetExample gets an example by resource name, including both data and annotation.
func (c *Client) GetExample(ctx context.Context, req *datalabelingpb.GetExampleRequest, opts ...gax.CallOption) (*datalabelingpb.Example, error) {
	return c.internalClient.GetExample(ctx, req, opts...)
}

// ListExamples lists examples in an annotated dataset. Pagination is supported.
func (c *Client) ListExamples(ctx context.Context, req *datalabelingpb.ListExamplesRequest, opts ...gax.CallOption) *ExampleIterator {
	return c.internalClient.ListExamples(ctx, req, opts...)
}

// CreateAnnotationSpecSet creates an annotation spec set by providing a set of labels.
func (c *Client) CreateAnnotationSpecSet(ctx context.Context, req *datalabelingpb.CreateAnnotationSpecSetRequest, opts ...gax.CallOption) (*datalabelingpb.AnnotationSpecSet, error) {
	return c.internalClient.CreateAnnotationSpecSet(ctx, req, opts...)
}

// GetAnnotationSpecSet gets an annotation spec set by resource name.
func (c *Client) GetAnnotationSpecSet(ctx context.Context, req *datalabelingpb.GetAnnotationSpecSetRequest, opts ...gax.CallOption) (*datalabelingpb.AnnotationSpecSet, error) {
	return c.internalClient.GetAnnotationSpecSet(ctx, req, opts...)
}

// ListAnnotationSpecSets lists annotation spec sets for a project. Pagination is supported.
func (c *Client) ListAnnotationSpecSets(ctx context.Context, req *datalabelingpb.ListAnnotationSpecSetsRequest, opts ...gax.CallOption) *AnnotationSpecSetIterator {
	return c.internalClient.ListAnnotationSpecSets(ctx, req, opts...)
}

// DeleteAnnotationSpecSet deletes an annotation spec set by resource name.
func (c *Client) DeleteAnnotationSpecSet(ctx context.Context, req *datalabelingpb.DeleteAnnotationSpecSetRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteAnnotationSpecSet(ctx, req, opts...)
}

// CreateInstruction creates an instruction for how data should be labeled.
func (c *Client) CreateInstruction(ctx context.Context, req *datalabelingpb.CreateInstructionRequest, opts ...gax.CallOption) (*CreateInstructionOperation, error) {
	return c.internalClient.CreateInstruction(ctx, req, opts...)
}

// CreateInstructionOperation returns a new CreateInstructionOperation from a given name.
// The name must be that of a previously created CreateInstructionOperation, possibly from a different process.
func (c *Client) CreateInstructionOperation(name string) *CreateInstructionOperation {
	return c.internalClient.CreateInstructionOperation(name)
}

// GetInstruction gets an instruction by resource name.
func (c *Client) GetInstruction(ctx context.Context, req *datalabelingpb.GetInstructionRequest, opts ...gax.CallOption) (*datalabelingpb.Instruction, error) {
	return c.internalClient.GetInstruction(ctx, req, opts...)
}

// ListInstructions lists instructions for a project. Pagination is supported.
func (c *Client) ListInstructions(ctx context.Context, req *datalabelingpb.ListInstructionsRequest, opts ...gax.CallOption) *InstructionIterator {
	return c.internalClient.ListInstructions(ctx, req, opts...)
}

// DeleteInstruction deletes an instruction object by resource name.
func (c *Client) DeleteInstruction(ctx context.Context, req *datalabelingpb.DeleteInstructionRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteInstruction(ctx, req, opts...)
}

// GetEvaluation gets an evaluation by resource name (to search, use
// projects.evaluations.search).
func (c *Client) GetEvaluation(ctx context.Context, req *datalabelingpb.GetEvaluationRequest, opts ...gax.CallOption) (*datalabelingpb.Evaluation, error) {
	return c.internalClient.GetEvaluation(ctx, req, opts...)
}

// SearchEvaluations searches evaluations within a project.
func (c *Client) SearchEvaluations(ctx context.Context, req *datalabelingpb.SearchEvaluationsRequest, opts ...gax.CallOption) *EvaluationIterator {
	return c.internalClient.SearchEvaluations(ctx, req, opts...)
}

// SearchExampleComparisons searches example comparisons from an evaluation. The return format is a
// list of example comparisons that show ground truth and prediction(s) for
// a single input. Search by providing an evaluation ID.
func (c *Client) SearchExampleComparisons(ctx context.Context, req *datalabelingpb.SearchExampleComparisonsRequest, opts ...gax.CallOption) *SearchExampleComparisonsResponse_ExampleComparisonIterator {
	return c.internalClient.SearchExampleComparisons(ctx, req, opts...)
}

// CreateEvaluationJob creates an evaluation job.
func (c *Client) CreateEvaluationJob(ctx context.Context, req *datalabelingpb.CreateEvaluationJobRequest, opts ...gax.CallOption) (*datalabelingpb.EvaluationJob, error) {
	return c.internalClient.CreateEvaluationJob(ctx, req, opts...)
}

// UpdateEvaluationJob updates an evaluation job. You can only update certain fields of the job’s
// EvaluationJobConfig: humanAnnotationConfig.instruction,
// exampleCount, and exampleSamplePercentage.
//
// If you want to change any other aspect of the evaluation job, you must
// delete the job and create a new one.
func (c *Client) UpdateEvaluationJob(ctx context.Context, req *datalabelingpb.UpdateEvaluationJobRequest, opts ...gax.CallOption) (*datalabelingpb.EvaluationJob, error) {
	return c.internalClient.UpdateEvaluationJob(ctx, req, opts...)
}

// GetEvaluationJob gets an evaluation job by resource name.
func (c *Client) GetEvaluationJob(ctx context.Context, req *datalabelingpb.GetEvaluationJobRequest, opts ...gax.CallOption) (*datalabelingpb.EvaluationJob, error) {
	return c.internalClient.GetEvaluationJob(ctx, req, opts...)
}

// PauseEvaluationJob pauses an evaluation job. Pausing an evaluation job that is already in a
// PAUSED state is a no-op.
func (c *Client) PauseEvaluationJob(ctx context.Context, req *datalabelingpb.PauseEvaluationJobRequest, opts ...gax.CallOption) error {
	return c.internalClient.PauseEvaluationJob(ctx, req, opts...)
}

// ResumeEvaluationJob resumes a paused evaluation job. A deleted evaluation job can’t be resumed.
// Resuming a running or scheduled evaluation job is a no-op.
func (c *Client) ResumeEvaluationJob(ctx context.Context, req *datalabelingpb.ResumeEvaluationJobRequest, opts ...gax.CallOption) error {
	return c.internalClient.ResumeEvaluationJob(ctx, req, opts...)
}

// DeleteEvaluationJob stops and deletes an evaluation job.
func (c *Client) DeleteEvaluationJob(ctx context.Context, req *datalabelingpb.DeleteEvaluationJobRequest, opts ...gax.CallOption) error {
	return c.internalClient.DeleteEvaluationJob(ctx, req, opts...)
}

// ListEvaluationJobs lists all evaluation jobs within a project with possible filters.
// Pagination is supported.
func (c *Client) ListEvaluationJobs(ctx context.Context, req *datalabelingpb.ListEvaluationJobsRequest, opts ...gax.CallOption) *EvaluationJobIterator {
	return c.internalClient.ListEvaluationJobs(ctx, req, opts...)
}

// gRPCClient is a client for interacting with Data Labeling API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type gRPCClient struct {
	// Connection pool of gRPC connections to the service.
	connPool gtransport.ConnPool

	// Points back to the CallOptions field of the containing Client
	CallOptions **CallOptions

	// The gRPC API client.
	client datalabelingpb.DataLabelingServiceClient

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient **lroauto.OperationsClient

	// The x-goog-* metadata to be sent with each request.
	xGoogHeaders []string
}

// NewClient creates a new data labeling service client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// Service for the AI Platform Data Labeling API.
func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
	clientOpts := defaultGRPCClientOptions()
	if newClientHook != nil {
		hookOpts, err := newClientHook(ctx, clientHookParams{})
		if err != nil {
			return nil, err
		}
		clientOpts = append(clientOpts, hookOpts...)
	}

	connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
	if err != nil {
		return nil, err
	}
	client := Client{CallOptions: defaultCallOptions()}

	c := &gRPCClient{
		connPool:    connPool,
		client:      datalabelingpb.NewDataLabelingServiceClient(connPool),
		CallOptions: &client.CallOptions,
	}
	c.setGoogleClientInfo()

	client.internalClient = c

	client.LROClient, err = lroauto.NewOperationsClient(ctx, gtransport.WithConnPool(connPool))
	if err != nil {
		// This error "should not happen", since we are just reusing old connection pool
		// and never actually need to dial.
		// If this does happen, we could leak connp. However, we cannot close conn:
		// If the user invoked the constructor with option.WithGRPCConn,
		// we would close a connection that's still in use.
		// TODO: investigate error conditions.
		return nil, err
	}
	c.LROClient = &client.LROClient
	return &client, nil
}

// Connection returns a connection to the API service.
//
// Deprecated: Connections are now pooled so this method does not always
// return the same resource.
func (c *gRPCClient) Connection() *grpc.ClientConn {
	return c.connPool.Conn()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *gRPCClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
	c.xGoogHeaders = []string{"x-goog-api-client", gax.XGoogHeader(kv...)}
}

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *gRPCClient) Close() error {
	return c.connPool.Close()
}

// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type restClient struct {
	// The http endpoint to connect to.
	endpoint string

	// The http client.
	httpClient *http.Client

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient **lroauto.OperationsClient

	// The x-goog-* headers to be sent with each request.
	xGoogHeaders []string

	// Points back to the CallOptions field of the containing Client
	CallOptions **CallOptions
}

// NewRESTClient creates a new data labeling service rest client.
//
// Service for the AI Platform Data Labeling API.
func NewRESTClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) {
	clientOpts := append(defaultRESTClientOptions(), opts...)
	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
	if err != nil {
		return nil, err
	}

	callOpts := defaultRESTCallOptions()
	c := &restClient{
		endpoint:    endpoint,
		httpClient:  httpClient,
		CallOptions: &callOpts,
	}
	c.setGoogleClientInfo()

	lroOpts := []option.ClientOption{
		option.WithHTTPClient(httpClient),
		option.WithEndpoint(endpoint),
	}
	opClient, err := lroauto.NewOperationsRESTClient(ctx, lroOpts...)
	if err != nil {
		return nil, err
	}
	c.LROClient = &opClient

	return &Client{internalClient: c, CallOptions: callOpts}, nil
}

func defaultRESTClientOptions() []option.ClientOption {
	return []option.ClientOption{
		internaloption.WithDefaultEndpoint("https://datalabeling.googleapis.com"),
		internaloption.WithDefaultEndpointTemplate("https://datalabeling.UNIVERSE_DOMAIN"),
		internaloption.WithDefaultMTLSEndpoint("https://datalabeling.mtls.googleapis.com"),
		internaloption.WithDefaultUniverseDomain("googleapis.com"),
		internaloption.WithDefaultAudience("https://datalabeling.googleapis.com/"),
		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
	}
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *restClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN")
	c.xGoogHeaders = []string{"x-goog-api-client", gax.XGoogHeader(kv...)}
}

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *restClient) Close() error {
	// Replace httpClient with nil to force cleanup.
	c.httpClient = nil
	return nil
}

// Connection returns a connection to the API service.
//
// Deprecated: This method always returns nil.
func (c *restClient) Connection() *grpc.ClientConn {
	return nil
}
func (c *gRPCClient) CreateDataset(ctx context.Context, req *datalabelingpb.CreateDatasetRequest, opts ...gax.CallOption) (*datalabelingpb.Dataset, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).CreateDataset[0:len((*c.CallOptions).CreateDataset):len((*c.CallOptions).CreateDataset)], opts...)
	var resp *datalabelingpb.Dataset
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.CreateDataset(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) GetDataset(ctx context.Context, req *datalabelingpb.GetDatasetRequest, opts ...gax.CallOption) (*datalabelingpb.Dataset, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetDataset[0:len((*c.CallOptions).GetDataset):len((*c.CallOptions).GetDataset)], opts...)
	var resp *datalabelingpb.Dataset
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetDataset(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) ListDatasets(ctx context.Context, req *datalabelingpb.ListDatasetsRequest, opts ...gax.CallOption) *DatasetIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListDatasets[0:len((*c.CallOptions).ListDatasets):len((*c.CallOptions).ListDatasets)], opts...)
	it := &DatasetIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListDatasetsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.Dataset, string, error) {
		resp := &datalabelingpb.ListDatasetsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.ListDatasets(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetDatasets(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) DeleteDataset(ctx context.Context, req *datalabelingpb.DeleteDatasetRequest, opts ...gax.CallOption) error {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).DeleteDataset[0:len((*c.CallOptions).DeleteDataset):len((*c.CallOptions).DeleteDataset)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.DeleteDataset(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) ImportData(ctx context.Context, req *datalabelingpb.ImportDataRequest, opts ...gax.CallOption) (*ImportDataOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ImportData[0:len((*c.CallOptions).ImportData):len((*c.CallOptions).ImportData)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.ImportData(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &ImportDataOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *gRPCClient) ExportData(ctx context.Context, req *datalabelingpb.ExportDataRequest, opts ...gax.CallOption) (*ExportDataOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ExportData[0:len((*c.CallOptions).ExportData):len((*c.CallOptions).ExportData)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.ExportData(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &ExportDataOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *gRPCClient) GetDataItem(ctx context.Context, req *datalabelingpb.GetDataItemRequest, opts ...gax.CallOption) (*datalabelingpb.DataItem, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetDataItem[0:len((*c.CallOptions).GetDataItem):len((*c.CallOptions).GetDataItem)], opts...)
	var resp *datalabelingpb.DataItem
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetDataItem(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) ListDataItems(ctx context.Context, req *datalabelingpb.ListDataItemsRequest, opts ...gax.CallOption) *DataItemIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListDataItems[0:len((*c.CallOptions).ListDataItems):len((*c.CallOptions).ListDataItems)], opts...)
	it := &DataItemIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListDataItemsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.DataItem, string, error) {
		resp := &datalabelingpb.ListDataItemsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.ListDataItems(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetDataItems(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) GetAnnotatedDataset(ctx context.Context, req *datalabelingpb.GetAnnotatedDatasetRequest, opts ...gax.CallOption) (*datalabelingpb.AnnotatedDataset, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetAnnotatedDataset[0:len((*c.CallOptions).GetAnnotatedDataset):len((*c.CallOptions).GetAnnotatedDataset)], opts...)
	var resp *datalabelingpb.AnnotatedDataset
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetAnnotatedDataset(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) ListAnnotatedDatasets(ctx context.Context, req *datalabelingpb.ListAnnotatedDatasetsRequest, opts ...gax.CallOption) *AnnotatedDatasetIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListAnnotatedDatasets[0:len((*c.CallOptions).ListAnnotatedDatasets):len((*c.CallOptions).ListAnnotatedDatasets)], opts...)
	it := &AnnotatedDatasetIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListAnnotatedDatasetsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.AnnotatedDataset, string, error) {
		resp := &datalabelingpb.ListAnnotatedDatasetsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.ListAnnotatedDatasets(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetAnnotatedDatasets(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) DeleteAnnotatedDataset(ctx context.Context, req *datalabelingpb.DeleteAnnotatedDatasetRequest, opts ...gax.CallOption) error {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).DeleteAnnotatedDataset[0:len((*c.CallOptions).DeleteAnnotatedDataset):len((*c.CallOptions).DeleteAnnotatedDataset)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.DeleteAnnotatedDataset(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) LabelImage(ctx context.Context, req *datalabelingpb.LabelImageRequest, opts ...gax.CallOption) (*LabelImageOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).LabelImage[0:len((*c.CallOptions).LabelImage):len((*c.CallOptions).LabelImage)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.LabelImage(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &LabelImageOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *gRPCClient) LabelVideo(ctx context.Context, req *datalabelingpb.LabelVideoRequest, opts ...gax.CallOption) (*LabelVideoOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).LabelVideo[0:len((*c.CallOptions).LabelVideo):len((*c.CallOptions).LabelVideo)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.LabelVideo(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &LabelVideoOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *gRPCClient) LabelText(ctx context.Context, req *datalabelingpb.LabelTextRequest, opts ...gax.CallOption) (*LabelTextOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).LabelText[0:len((*c.CallOptions).LabelText):len((*c.CallOptions).LabelText)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.LabelText(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &LabelTextOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *gRPCClient) GetExample(ctx context.Context, req *datalabelingpb.GetExampleRequest, opts ...gax.CallOption) (*datalabelingpb.Example, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetExample[0:len((*c.CallOptions).GetExample):len((*c.CallOptions).GetExample)], opts...)
	var resp *datalabelingpb.Example
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetExample(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) ListExamples(ctx context.Context, req *datalabelingpb.ListExamplesRequest, opts ...gax.CallOption) *ExampleIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListExamples[0:len((*c.CallOptions).ListExamples):len((*c.CallOptions).ListExamples)], opts...)
	it := &ExampleIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListExamplesRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.Example, string, error) {
		resp := &datalabelingpb.ListExamplesResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.ListExamples(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetExamples(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) CreateAnnotationSpecSet(ctx context.Context, req *datalabelingpb.CreateAnnotationSpecSetRequest, opts ...gax.CallOption) (*datalabelingpb.AnnotationSpecSet, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).CreateAnnotationSpecSet[0:len((*c.CallOptions).CreateAnnotationSpecSet):len((*c.CallOptions).CreateAnnotationSpecSet)], opts...)
	var resp *datalabelingpb.AnnotationSpecSet
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.CreateAnnotationSpecSet(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) GetAnnotationSpecSet(ctx context.Context, req *datalabelingpb.GetAnnotationSpecSetRequest, opts ...gax.CallOption) (*datalabelingpb.AnnotationSpecSet, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetAnnotationSpecSet[0:len((*c.CallOptions).GetAnnotationSpecSet):len((*c.CallOptions).GetAnnotationSpecSet)], opts...)
	var resp *datalabelingpb.AnnotationSpecSet
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetAnnotationSpecSet(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) ListAnnotationSpecSets(ctx context.Context, req *datalabelingpb.ListAnnotationSpecSetsRequest, opts ...gax.CallOption) *AnnotationSpecSetIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListAnnotationSpecSets[0:len((*c.CallOptions).ListAnnotationSpecSets):len((*c.CallOptions).ListAnnotationSpecSets)], opts...)
	it := &AnnotationSpecSetIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListAnnotationSpecSetsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.AnnotationSpecSet, string, error) {
		resp := &datalabelingpb.ListAnnotationSpecSetsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.ListAnnotationSpecSets(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetAnnotationSpecSets(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) DeleteAnnotationSpecSet(ctx context.Context, req *datalabelingpb.DeleteAnnotationSpecSetRequest, opts ...gax.CallOption) error {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).DeleteAnnotationSpecSet[0:len((*c.CallOptions).DeleteAnnotationSpecSet):len((*c.CallOptions).DeleteAnnotationSpecSet)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.DeleteAnnotationSpecSet(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) CreateInstruction(ctx context.Context, req *datalabelingpb.CreateInstructionRequest, opts ...gax.CallOption) (*CreateInstructionOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).CreateInstruction[0:len((*c.CallOptions).CreateInstruction):len((*c.CallOptions).CreateInstruction)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.CreateInstruction(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &CreateInstructionOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *gRPCClient) GetInstruction(ctx context.Context, req *datalabelingpb.GetInstructionRequest, opts ...gax.CallOption) (*datalabelingpb.Instruction, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetInstruction[0:len((*c.CallOptions).GetInstruction):len((*c.CallOptions).GetInstruction)], opts...)
	var resp *datalabelingpb.Instruction
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetInstruction(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) ListInstructions(ctx context.Context, req *datalabelingpb.ListInstructionsRequest, opts ...gax.CallOption) *InstructionIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListInstructions[0:len((*c.CallOptions).ListInstructions):len((*c.CallOptions).ListInstructions)], opts...)
	it := &InstructionIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListInstructionsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.Instruction, string, error) {
		resp := &datalabelingpb.ListInstructionsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.ListInstructions(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetInstructions(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) DeleteInstruction(ctx context.Context, req *datalabelingpb.DeleteInstructionRequest, opts ...gax.CallOption) error {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).DeleteInstruction[0:len((*c.CallOptions).DeleteInstruction):len((*c.CallOptions).DeleteInstruction)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.DeleteInstruction(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) GetEvaluation(ctx context.Context, req *datalabelingpb.GetEvaluationRequest, opts ...gax.CallOption) (*datalabelingpb.Evaluation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetEvaluation[0:len((*c.CallOptions).GetEvaluation):len((*c.CallOptions).GetEvaluation)], opts...)
	var resp *datalabelingpb.Evaluation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetEvaluation(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) SearchEvaluations(ctx context.Context, req *datalabelingpb.SearchEvaluationsRequest, opts ...gax.CallOption) *EvaluationIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).SearchEvaluations[0:len((*c.CallOptions).SearchEvaluations):len((*c.CallOptions).SearchEvaluations)], opts...)
	it := &EvaluationIterator{}
	req = proto.Clone(req).(*datalabelingpb.SearchEvaluationsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.Evaluation, string, error) {
		resp := &datalabelingpb.SearchEvaluationsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.SearchEvaluations(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetEvaluations(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) SearchExampleComparisons(ctx context.Context, req *datalabelingpb.SearchExampleComparisonsRequest, opts ...gax.CallOption) *SearchExampleComparisonsResponse_ExampleComparisonIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).SearchExampleComparisons[0:len((*c.CallOptions).SearchExampleComparisons):len((*c.CallOptions).SearchExampleComparisons)], opts...)
	it := &SearchExampleComparisonsResponse_ExampleComparisonIterator{}
	req = proto.Clone(req).(*datalabelingpb.SearchExampleComparisonsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.SearchExampleComparisonsResponse_ExampleComparison, string, error) {
		resp := &datalabelingpb.SearchExampleComparisonsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.SearchExampleComparisons(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetExampleComparisons(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *gRPCClient) CreateEvaluationJob(ctx context.Context, req *datalabelingpb.CreateEvaluationJobRequest, opts ...gax.CallOption) (*datalabelingpb.EvaluationJob, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).CreateEvaluationJob[0:len((*c.CallOptions).CreateEvaluationJob):len((*c.CallOptions).CreateEvaluationJob)], opts...)
	var resp *datalabelingpb.EvaluationJob
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.CreateEvaluationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) UpdateEvaluationJob(ctx context.Context, req *datalabelingpb.UpdateEvaluationJobRequest, opts ...gax.CallOption) (*datalabelingpb.EvaluationJob, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "evaluation_job.name", url.QueryEscape(req.GetEvaluationJob().GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).UpdateEvaluationJob[0:len((*c.CallOptions).UpdateEvaluationJob):len((*c.CallOptions).UpdateEvaluationJob)], opts...)
	var resp *datalabelingpb.EvaluationJob
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.UpdateEvaluationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) GetEvaluationJob(ctx context.Context, req *datalabelingpb.GetEvaluationJobRequest, opts ...gax.CallOption) (*datalabelingpb.EvaluationJob, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetEvaluationJob[0:len((*c.CallOptions).GetEvaluationJob):len((*c.CallOptions).GetEvaluationJob)], opts...)
	var resp *datalabelingpb.EvaluationJob
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.client.GetEvaluationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *gRPCClient) PauseEvaluationJob(ctx context.Context, req *datalabelingpb.PauseEvaluationJobRequest, opts ...gax.CallOption) error {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).PauseEvaluationJob[0:len((*c.CallOptions).PauseEvaluationJob):len((*c.CallOptions).PauseEvaluationJob)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.PauseEvaluationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) ResumeEvaluationJob(ctx context.Context, req *datalabelingpb.ResumeEvaluationJobRequest, opts ...gax.CallOption) error {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ResumeEvaluationJob[0:len((*c.CallOptions).ResumeEvaluationJob):len((*c.CallOptions).ResumeEvaluationJob)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.ResumeEvaluationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) DeleteEvaluationJob(ctx context.Context, req *datalabelingpb.DeleteEvaluationJobRequest, opts ...gax.CallOption) error {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).DeleteEvaluationJob[0:len((*c.CallOptions).DeleteEvaluationJob):len((*c.CallOptions).DeleteEvaluationJob)], opts...)
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		_, err = c.client.DeleteEvaluationJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	return err
}

func (c *gRPCClient) ListEvaluationJobs(ctx context.Context, req *datalabelingpb.ListEvaluationJobsRequest, opts ...gax.CallOption) *EvaluationJobIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListEvaluationJobs[0:len((*c.CallOptions).ListEvaluationJobs):len((*c.CallOptions).ListEvaluationJobs)], opts...)
	it := &EvaluationJobIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListEvaluationJobsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.EvaluationJob, string, error) {
		resp := &datalabelingpb.ListEvaluationJobsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.client.ListEvaluationJobs(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetEvaluationJobs(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// CreateDataset creates dataset. If success return a Dataset resource.
func (c *restClient) CreateDataset(ctx context.Context, req *datalabelingpb.CreateDatasetRequest, opts ...gax.CallOption) (*datalabelingpb.Dataset, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v/datasets", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).CreateDataset[0:len((*c.CallOptions).CreateDataset):len((*c.CallOptions).CreateDataset)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.Dataset{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// GetDataset gets dataset by resource name.
func (c *restClient) GetDataset(ctx context.Context, req *datalabelingpb.GetDatasetRequest, opts ...gax.CallOption) (*datalabelingpb.Dataset, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetDataset[0:len((*c.CallOptions).GetDataset):len((*c.CallOptions).GetDataset)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.Dataset{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListDatasets lists datasets under a project. Pagination is supported.
func (c *restClient) ListDatasets(ctx context.Context, req *datalabelingpb.ListDatasetsRequest, opts ...gax.CallOption) *DatasetIterator {
	it := &DatasetIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListDatasetsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.Dataset, string, error) {
		resp := &datalabelingpb.ListDatasetsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1beta1/%v/datasets", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetDatasets(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// DeleteDataset deletes a dataset by resource name.
func (c *restClient) DeleteDataset(ctx context.Context, req *datalabelingpb.DeleteDatasetRequest, opts ...gax.CallOption) error {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	return gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("DELETE", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		// Returns nil if there is no error, otherwise wraps
		// the response code and body into a non-nil error
		return googleapi.CheckResponse(httpRsp)
	}, opts...)
}

// ImportData imports data into dataset based on source locations defined in request.
// It can be called multiple times for the same dataset. Each dataset can
// only have one long running operation running on it. For example, no
// labeling task (also long running operation) can be started while
// importing is still ongoing. Vice versa.
func (c *restClient) ImportData(ctx context.Context, req *datalabelingpb.ImportDataRequest, opts ...gax.CallOption) (*ImportDataOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v:importData", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1beta1/%s", resp.GetName())
	return &ImportDataOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// ExportData exports data and annotations from dataset.
func (c *restClient) ExportData(ctx context.Context, req *datalabelingpb.ExportDataRequest, opts ...gax.CallOption) (*ExportDataOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v:exportData", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1beta1/%s", resp.GetName())
	return &ExportDataOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// GetDataItem gets a data item in a dataset by resource name. This API can be
// called after data are imported into dataset.
func (c *restClient) GetDataItem(ctx context.Context, req *datalabelingpb.GetDataItemRequest, opts ...gax.CallOption) (*datalabelingpb.DataItem, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetDataItem[0:len((*c.CallOptions).GetDataItem):len((*c.CallOptions).GetDataItem)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.DataItem{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListDataItems lists data items in a dataset. This API can be called after data
// are imported into dataset. Pagination is supported.
func (c *restClient) ListDataItems(ctx context.Context, req *datalabelingpb.ListDataItemsRequest, opts ...gax.CallOption) *DataItemIterator {
	it := &DataItemIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListDataItemsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.DataItem, string, error) {
		resp := &datalabelingpb.ListDataItemsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1beta1/%v/dataItems", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetDataItems(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// GetAnnotatedDataset gets an annotated dataset by resource name.
func (c *restClient) GetAnnotatedDataset(ctx context.Context, req *datalabelingpb.GetAnnotatedDatasetRequest, opts ...gax.CallOption) (*datalabelingpb.AnnotatedDataset, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetAnnotatedDataset[0:len((*c.CallOptions).GetAnnotatedDataset):len((*c.CallOptions).GetAnnotatedDataset)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.AnnotatedDataset{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListAnnotatedDatasets lists annotated datasets for a dataset. Pagination is supported.
func (c *restClient) ListAnnotatedDatasets(ctx context.Context, req *datalabelingpb.ListAnnotatedDatasetsRequest, opts ...gax.CallOption) *AnnotatedDatasetIterator {
	it := &AnnotatedDatasetIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListAnnotatedDatasetsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.AnnotatedDataset, string, error) {
		resp := &datalabelingpb.ListAnnotatedDatasetsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1beta1/%v/annotatedDatasets", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetAnnotatedDatasets(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// DeleteAnnotatedDataset deletes an annotated dataset by resource name.
func (c *restClient) DeleteAnnotatedDataset(ctx context.Context, req *datalabelingpb.DeleteAnnotatedDatasetRequest, opts ...gax.CallOption) error {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	return gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("DELETE", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		// Returns nil if there is no error, otherwise wraps
		// the response code and body into a non-nil error
		return googleapi.CheckResponse(httpRsp)
	}, opts...)
}

// LabelImage starts a labeling task for image. The type of image labeling task is
// configured by feature in the request.
func (c *restClient) LabelImage(ctx context.Context, req *datalabelingpb.LabelImageRequest, opts ...gax.CallOption) (*LabelImageOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v/image:label", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1beta1/%s", resp.GetName())
	return &LabelImageOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// LabelVideo starts a labeling task for video. The type of video labeling task is
// configured by feature in the request.
func (c *restClient) LabelVideo(ctx context.Context, req *datalabelingpb.LabelVideoRequest, opts ...gax.CallOption) (*LabelVideoOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v/video:label", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1beta1/%s", resp.GetName())
	return &LabelVideoOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// LabelText starts a labeling task for text. The type of text labeling task is
// configured by feature in the request.
func (c *restClient) LabelText(ctx context.Context, req *datalabelingpb.LabelTextRequest, opts ...gax.CallOption) (*LabelTextOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v/text:label", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1beta1/%s", resp.GetName())
	return &LabelTextOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// GetExample gets an example by resource name, including both data and annotation.
func (c *restClient) GetExample(ctx context.Context, req *datalabelingpb.GetExampleRequest, opts ...gax.CallOption) (*datalabelingpb.Example, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")
	if req.GetFilter() != "" {
		params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetExample[0:len((*c.CallOptions).GetExample):len((*c.CallOptions).GetExample)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.Example{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListExamples lists examples in an annotated dataset. Pagination is supported.
func (c *restClient) ListExamples(ctx context.Context, req *datalabelingpb.ListExamplesRequest, opts ...gax.CallOption) *ExampleIterator {
	it := &ExampleIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListExamplesRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.Example, string, error) {
		resp := &datalabelingpb.ListExamplesResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1beta1/%v/examples", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetExamples(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// CreateAnnotationSpecSet creates an annotation spec set by providing a set of labels.
func (c *restClient) CreateAnnotationSpecSet(ctx context.Context, req *datalabelingpb.CreateAnnotationSpecSetRequest, opts ...gax.CallOption) (*datalabelingpb.AnnotationSpecSet, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v/annotationSpecSets", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).CreateAnnotationSpecSet[0:len((*c.CallOptions).CreateAnnotationSpecSet):len((*c.CallOptions).CreateAnnotationSpecSet)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.AnnotationSpecSet{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// GetAnnotationSpecSet gets an annotation spec set by resource name.
func (c *restClient) GetAnnotationSpecSet(ctx context.Context, req *datalabelingpb.GetAnnotationSpecSetRequest, opts ...gax.CallOption) (*datalabelingpb.AnnotationSpecSet, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetAnnotationSpecSet[0:len((*c.CallOptions).GetAnnotationSpecSet):len((*c.CallOptions).GetAnnotationSpecSet)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.AnnotationSpecSet{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListAnnotationSpecSets lists annotation spec sets for a project. Pagination is supported.
func (c *restClient) ListAnnotationSpecSets(ctx context.Context, req *datalabelingpb.ListAnnotationSpecSetsRequest, opts ...gax.CallOption) *AnnotationSpecSetIterator {
	it := &AnnotationSpecSetIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListAnnotationSpecSetsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.AnnotationSpecSet, string, error) {
		resp := &datalabelingpb.ListAnnotationSpecSetsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1beta1/%v/annotationSpecSets", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetAnnotationSpecSets(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// DeleteAnnotationSpecSet deletes an annotation spec set by resource name.
func (c *restClient) DeleteAnnotationSpecSet(ctx context.Context, req *datalabelingpb.DeleteAnnotationSpecSetRequest, opts ...gax.CallOption) error {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	return gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("DELETE", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		// Returns nil if there is no error, otherwise wraps
		// the response code and body into a non-nil error
		return googleapi.CheckResponse(httpRsp)
	}, opts...)
}

// CreateInstruction creates an instruction for how data should be labeled.
func (c *restClient) CreateInstruction(ctx context.Context, req *datalabelingpb.CreateInstructionRequest, opts ...gax.CallOption) (*CreateInstructionOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v/instructions", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1beta1/%s", resp.GetName())
	return &CreateInstructionOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// GetInstruction gets an instruction by resource name.
func (c *restClient) GetInstruction(ctx context.Context, req *datalabelingpb.GetInstructionRequest, opts ...gax.CallOption) (*datalabelingpb.Instruction, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetInstruction[0:len((*c.CallOptions).GetInstruction):len((*c.CallOptions).GetInstruction)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.Instruction{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// ListInstructions lists instructions for a project. Pagination is supported.
func (c *restClient) ListInstructions(ctx context.Context, req *datalabelingpb.ListInstructionsRequest, opts ...gax.CallOption) *InstructionIterator {
	it := &InstructionIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListInstructionsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.Instruction, string, error) {
		resp := &datalabelingpb.ListInstructionsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1beta1/%v/instructions", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetInstructions(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// DeleteInstruction deletes an instruction object by resource name.
func (c *restClient) DeleteInstruction(ctx context.Context, req *datalabelingpb.DeleteInstructionRequest, opts ...gax.CallOption) error {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	return gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("DELETE", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		// Returns nil if there is no error, otherwise wraps
		// the response code and body into a non-nil error
		return googleapi.CheckResponse(httpRsp)
	}, opts...)
}

// GetEvaluation gets an evaluation by resource name (to search, use
// projects.evaluations.search).
func (c *restClient) GetEvaluation(ctx context.Context, req *datalabelingpb.GetEvaluationRequest, opts ...gax.CallOption) (*datalabelingpb.Evaluation, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetEvaluation[0:len((*c.CallOptions).GetEvaluation):len((*c.CallOptions).GetEvaluation)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.Evaluation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// SearchEvaluations searches evaluations within a project.
func (c *restClient) SearchEvaluations(ctx context.Context, req *datalabelingpb.SearchEvaluationsRequest, opts ...gax.CallOption) *EvaluationIterator {
	it := &EvaluationIterator{}
	req = proto.Clone(req).(*datalabelingpb.SearchEvaluationsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.Evaluation, string, error) {
		resp := &datalabelingpb.SearchEvaluationsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1beta1/%v/evaluations:search", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetEvaluations(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// SearchExampleComparisons searches example comparisons from an evaluation. The return format is a
// list of example comparisons that show ground truth and prediction(s) for
// a single input. Search by providing an evaluation ID.
func (c *restClient) SearchExampleComparisons(ctx context.Context, req *datalabelingpb.SearchExampleComparisonsRequest, opts ...gax.CallOption) *SearchExampleComparisonsResponse_ExampleComparisonIterator {
	it := &SearchExampleComparisonsResponse_ExampleComparisonIterator{}
	req = proto.Clone(req).(*datalabelingpb.SearchExampleComparisonsRequest)
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.SearchExampleComparisonsResponse_ExampleComparison, string, error) {
		resp := &datalabelingpb.SearchExampleComparisonsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		jsonReq, err := m.Marshal(req)
		if err != nil {
			return nil, "", err
		}

		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1beta1/%v/exampleComparisons:search", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetExampleComparisons(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// CreateEvaluationJob creates an evaluation job.
func (c *restClient) CreateEvaluationJob(ctx context.Context, req *datalabelingpb.CreateEvaluationJobRequest, opts ...gax.CallOption) (*datalabelingpb.EvaluationJob, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v/evaluationJobs", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).CreateEvaluationJob[0:len((*c.CallOptions).CreateEvaluationJob):len((*c.CallOptions).CreateEvaluationJob)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.EvaluationJob{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// UpdateEvaluationJob updates an evaluation job. You can only update certain fields of the job’s
// EvaluationJobConfig: humanAnnotationConfig.instruction,
// exampleCount, and exampleSamplePercentage.
//
// If you want to change any other aspect of the evaluation job, you must
// delete the job and create a new one.
func (c *restClient) UpdateEvaluationJob(ctx context.Context, req *datalabelingpb.UpdateEvaluationJobRequest, opts ...gax.CallOption) (*datalabelingpb.EvaluationJob, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	body := req.GetEvaluationJob()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetEvaluationJob().GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")
	if req.GetUpdateMask() != nil {
		updateMask, err := protojson.Marshal(req.GetUpdateMask())
		if err != nil {
			return nil, err
		}
		params.Add("updateMask", string(updateMask[1:len(updateMask)-1]))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "evaluation_job.name", url.QueryEscape(req.GetEvaluationJob().GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).UpdateEvaluationJob[0:len((*c.CallOptions).UpdateEvaluationJob):len((*c.CallOptions).UpdateEvaluationJob)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.EvaluationJob{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("PATCH", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// GetEvaluationJob gets an evaluation job by resource name.
func (c *restClient) GetEvaluationJob(ctx context.Context, req *datalabelingpb.GetEvaluationJobRequest, opts ...gax.CallOption) (*datalabelingpb.EvaluationJob, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetEvaluationJob[0:len((*c.CallOptions).GetEvaluationJob):len((*c.CallOptions).GetEvaluationJob)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &datalabelingpb.EvaluationJob{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// PauseEvaluationJob pauses an evaluation job. Pausing an evaluation job that is already in a
// PAUSED state is a no-op.
func (c *restClient) PauseEvaluationJob(ctx context.Context, req *datalabelingpb.PauseEvaluationJobRequest, opts ...gax.CallOption) error {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v:pause", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	return gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		// Returns nil if there is no error, otherwise wraps
		// the response code and body into a non-nil error
		return googleapi.CheckResponse(httpRsp)
	}, opts...)
}

// ResumeEvaluationJob resumes a paused evaluation job. A deleted evaluation job can’t be resumed.
// Resuming a running or scheduled evaluation job is a no-op.
func (c *restClient) ResumeEvaluationJob(ctx context.Context, req *datalabelingpb.ResumeEvaluationJobRequest, opts ...gax.CallOption) error {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	jsonReq, err := m.Marshal(req)
	if err != nil {
		return err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v:resume", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	return gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		// Returns nil if there is no error, otherwise wraps
		// the response code and body into a non-nil error
		return googleapi.CheckResponse(httpRsp)
	}, opts...)
}

// DeleteEvaluationJob stops and deletes an evaluation job.
func (c *restClient) DeleteEvaluationJob(ctx context.Context, req *datalabelingpb.DeleteEvaluationJobRequest, opts ...gax.CallOption) error {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return err
	}
	baseUrl.Path += fmt.Sprintf("/v1beta1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	return gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("DELETE", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		// Returns nil if there is no error, otherwise wraps
		// the response code and body into a non-nil error
		return googleapi.CheckResponse(httpRsp)
	}, opts...)
}

// ListEvaluationJobs lists all evaluation jobs within a project with possible filters.
// Pagination is supported.
func (c *restClient) ListEvaluationJobs(ctx context.Context, req *datalabelingpb.ListEvaluationJobsRequest, opts ...gax.CallOption) *EvaluationJobIterator {
	it := &EvaluationJobIterator{}
	req = proto.Clone(req).(*datalabelingpb.ListEvaluationJobsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*datalabelingpb.EvaluationJob, string, error) {
		resp := &datalabelingpb.ListEvaluationJobsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1beta1/%v/evaluationJobs", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetEvaluationJobs(), resp.GetNextPageToken(), nil
	}

	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

// CreateInstructionOperation returns a new CreateInstructionOperation from a given name.
// The name must be that of a previously created CreateInstructionOperation, possibly from a different process.
func (c *gRPCClient) CreateInstructionOperation(name string) *CreateInstructionOperation {
	return &CreateInstructionOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// CreateInstructionOperation returns a new CreateInstructionOperation from a given name.
// The name must be that of a previously created CreateInstructionOperation, possibly from a different process.
func (c *restClient) CreateInstructionOperation(name string) *CreateInstructionOperation {
	override := fmt.Sprintf("/v1beta1/%s", name)
	return &CreateInstructionOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}

// ExportDataOperation returns a new ExportDataOperation from a given name.
// The name must be that of a previously created ExportDataOperation, possibly from a different process.
func (c *gRPCClient) ExportDataOperation(name string) *ExportDataOperation {
	return &ExportDataOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// ExportDataOperation returns a new ExportDataOperation from a given name.
// The name must be that of a previously created ExportDataOperation, possibly from a different process.
func (c *restClient) ExportDataOperation(name string) *ExportDataOperation {
	override := fmt.Sprintf("/v1beta1/%s", name)
	return &ExportDataOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}

// ImportDataOperation returns a new ImportDataOperation from a given name.
// The name must be that of a previously created ImportDataOperation, possibly from a different process.
func (c *gRPCClient) ImportDataOperation(name string) *ImportDataOperation {
	return &ImportDataOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// ImportDataOperation returns a new ImportDataOperation from a given name.
// The name must be that of a previously created ImportDataOperation, possibly from a different process.
func (c *restClient) ImportDataOperation(name string) *ImportDataOperation {
	override := fmt.Sprintf("/v1beta1/%s", name)
	return &ImportDataOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}

// LabelImageOperation returns a new LabelImageOperation from a given name.
// The name must be that of a previously created LabelImageOperation, possibly from a different process.
func (c *gRPCClient) LabelImageOperation(name string) *LabelImageOperation {
	return &LabelImageOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// LabelImageOperation returns a new LabelImageOperation from a given name.
// The name must be that of a previously created LabelImageOperation, possibly from a different process.
func (c *restClient) LabelImageOperation(name string) *LabelImageOperation {
	override := fmt.Sprintf("/v1beta1/%s", name)
	return &LabelImageOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}

// LabelTextOperation returns a new LabelTextOperation from a given name.
// The name must be that of a previously created LabelTextOperation, possibly from a different process.
func (c *gRPCClient) LabelTextOperation(name string) *LabelTextOperation {
	return &LabelTextOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// LabelTextOperation returns a new LabelTextOperation from a given name.
// The name must be that of a previously created LabelTextOperation, possibly from a different process.
func (c *restClient) LabelTextOperation(name string) *LabelTextOperation {
	override := fmt.Sprintf("/v1beta1/%s", name)
	return &LabelTextOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}

// LabelVideoOperation returns a new LabelVideoOperation from a given name.
// The name must be that of a previously created LabelVideoOperation, possibly from a different process.
func (c *gRPCClient) LabelVideoOperation(name string) *LabelVideoOperation {
	return &LabelVideoOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// LabelVideoOperation returns a new LabelVideoOperation from a given name.
// The name must be that of a previously created LabelVideoOperation, possibly from a different process.
func (c *restClient) LabelVideoOperation(name string) *LabelVideoOperation {
	override := fmt.Sprintf("/v1beta1/%s", name)
	return &LabelVideoOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}