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                                "GOOGLE_DEFAULT_ENCRYPTION": 1,
                                "CUSTOMER_MANAGED_ENCRYPTION": 2
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                            "DATABASE_DIALECT_UNSPECIFIED": 0,
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                            "POSTGRESQL": 2
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                                    "post": "/v1/{resource=projects/*/instances/*/databases/*}:setIamPolicy",
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                              "type": "UpdateDatabaseRequest",
                              "id": 1
                            },
                            "progress": {
                              "type": "OperationProgress",
                              "id": 2
                            },
                            "cancelTime": {
                              "type": "google.protobuf.Timestamp",
                              "id": 3
                            }
                          }
                        },
                        "UpdateDatabaseDdlRequest": {
                          "fields": {
                            "database": {
                              "type": "string",
                              "id": 1,
                              "options": {
                                "(google.api.field_behavior)": "REQUIRED",
                                "(google.api.resource_reference).type": "spanner.googleapis.com/Database"
                              }
                            },
                            "statements": {
                              "rule": "repeated",
                              "type": "string",
                              "id": 2,
                              "options": {
                                "(google.api.field_behavior)": "REQUIRED"
                              }
                            },
                            "operationId": {
                              "type": "string",
                              "id": 3
                            },
                            "protoDescriptors": {
                              "type": "bytes",
                              "id": 4,
                              "options": {
                                "(google.api.field_behavior)": "OPTIONAL"
                              }
                            }
                          }
                        },
                        "DdlStatementActionInfo": {
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                              "type": "string",
                              "id": 1
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                            "entityType": {
                              "type": "string",
                              "id": 2
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                            "entityNames": {
                              "rule": "repeated",
                              "type": "string",
                              "id": 3
                            }
                          }
                        },
                        "UpdateDatabaseDdlMetadata": {
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                              "type": "string",
                              "id": 1,
                              "options": {
                                "(google.api.resource_reference).type": "spanner.googleapis.com/Database"
                              }
                            },
                            "statements": {
                              "rule": "repeated",
                              "type": "string",
                              "id": 2
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                            "commitTimestamps": {
                              "rule": "repeated",
                              "type": "google.protobuf.Timestamp",
                              "id": 3
                            },
                            "throttled": {
                              "type": "bool",
                              "id": 4,
                              "options": {
                                "(google.api.field_behavior)": "OUTPUT_ONLY"
                              }
                            },
                            "progress": {
                              "rule": "repeated",
                              "type": "OperationProgress",
                              "id": 5
                            },
                            "actions": {
                              "rule": "repeated",
                              "type": "DdlStatementActionInfo",
                              "id": 6
                            }
                          }
                        },
                        "DropDatabaseRequest": {
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                            "database": {
                              "type": "string",
                              "id": 1,
                              "options": {
                                "(google.api.field_behavior)": "REQUIRED",
                                "(google.api.resource_reference).type": "spanner.googleapis.com/Database"
                              }
                            }
                          }
                        },
                        "GetDatabaseDdlRequest": {
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                            "database": {
                              "type": "string",
                              "id": 1,
                              "options": {
                                "(google.api.field_behavior)": "REQUIRED",
                                "(google.api.resource_reference).type": "spanner.googleapis.com/Database"
                              }
                            }
                          }
                        },
                        "GetDatabaseDdlResponse": {
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                              "rule": "repeated",
                              "type": "string",
                              "id": 1
                            },
                            "protoDescriptors": {
                              "type": "bytes",
                              "id": 2
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                          }
                        },
                        "ListDatabaseOperationsRequest": {
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                              "type": "string",
                              "id": 1,
                              "options": {
                                "(google.api.field_behavior)": "REQUIRED",
                                "(google.api.resource_reference).type": "spanner.googleapis.com/Instance"
                              }
                            },
                            "filter": {
                              "type": "string",
                              "id": 2
                            },
                            "pageSize": {
                              "type": "int32",
                              "id": 3
                            },
                            "pageToken": {
                              "type": "string",
                              "id": 4
                            }
                          }
                        },
                        "ListDatabaseOperationsResponse": {
                          "fields": {
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                              "rule": "repeated",
                              "type": "google.longrunning.Operation",
                              "id": 1
                            },
                            "nextPageToken": {
                              "type": "string",
                              "id": 2
                            }
                          }
                        },
                        "RestoreDatabaseRequest": {
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                              "oneof": [
                                "backup"
                              ]
                            }
                          },
                          "fields": {
                            "parent": {
                              "type": "string",
                              "id": 1,
                              "options": {
                                "(google.api.field_behavior)": "REQUIRED",
                                "(google.api.resource_reference).type": "spanner.googleapis.com/Instance"
                              }
                            },
                            "databaseId": {
                              "type": "string",
                              "id": 2,
                              "options": {
                                "(google.api.field_behavior)": "REQUIRED"
                              }
                            },
                            "backup": {
                              "type": "string",
                              "id": 3,
                              "options": {
                                "(google.api.resource_reference).type": "spanner.googleapis.com/Backup"
                              }
                            },
                            "encryptionConfig": {
                              "type": "RestoreDatabaseEncryptionConfig",
                              "id": 4,
                              "options": {
                                "(google.api.field_behavior)": "OPTIONAL"
                              }
                            }
                          }
                        },
                        "RestoreDatabaseEncryptionConfig": {
                          "fields": {
                            "encryptionType": {
                              "type": "EncryptionType",
                              "id": 1,
                              "options": {
                                "(google.api.field_behavior)": "REQUIRED"
                              }
                            },
                            "kmsKeyName": {
                              "type": "string",
                              "id": 2,
                              "options": {
                                "(google.api.field_behavior)": "OPTIONAL",
                                "(google.api.resource_reference).type": "cloudkms.googleapis.com/CryptoKey"
                              }
                            }
                          },
                          "nested": {
                            "EncryptionType": {
                              "values": {
                                "ENCRYPTION_TYPE_UNSPECIFIED": 0,
                                "USE_CONFIG_DEFAULT_OR_BACKUP_ENCRYPTION": 1,
                                "GOOGLE_DEFAULT_ENCRYPTION": 2,
                                "CUSTOMER_MANAGED_ENCRYPTION": 3
                              }
                            }
                          }
                        },
                        "RestoreDatabaseMetadata": {
                          "oneofs": {
                            "sourceInfo": {
                              "oneof": [
                                "backupInfo"
                              ]
                            }
                          },
                          "fields": {
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                              "type": "string",
                              "id": 1,
                              "options": {
                                "(google.api.resource_reference).type": "spanner.googleapis.com/Database"
                              }
                            },
                            "sourceType": {
                              "type": "RestoreSourceType",
                              "id": 2
                            },
                            "backupInfo": {
                              "type": "BackupInfo",
                              "id": 3
                            },
                            "progress": {
                              "type": "OperationProgress",
                              "id": 4
                            },
                            "cancelTime": {
                              "type": "google.protobuf.Timestamp",
                              "id": 5
                            },
                            "optimizeDatabaseOperationName": {
                              "type": "string",
                              "id": 6
                            }
                          }
                        },
                        "OptimizeRestoredDatabaseMetadata": {
                          "fields": {
                            "name": {
                              "type": "string",
                              "id": 1,
                              "options": {
                                "(google.api.resource_reference).type": "spanner.googleapis.com/Database"
                              }
                            },
                            "progress": {
                              "type": "OperationProgress",
                              "id": 2
                            }
                          }
                        },
                        "RestoreSourceType": {
                          "values": {
                            "TYPE_UNSPECIFIED": 0,
                            "BACKUP": 1
                          }
                        },
                        "DatabaseRole": {
                          "options": {
                            "(google.api.resource).type": "spanner.googleapis.com/DatabaseRole",
                            "(google.api.resource).pattern": "projects/{project}/instances/{instance}/databases/{database}/databaseRoles/{role}"
                          },
                          "fields": {
                            "name": {
                              "type": "string",
                              "id": 1,
                              "options": {
                                "(google.api.field_behavior)": "REQUIRED"
                              }
                            }
                          }
                        },
                        "ListDatabaseRolesRequest": {
                          "fields": {
                            "parent": {
                              "type": "string",
                              "id": 1,
                              "options": {
                                "(google.api.field_behavior)": "REQUIRED",
                                "(google.api.resource_reference).type": "spanner.googleapis.com/Database"
                              }
                            },
                            "pageSize": {
                              "type": "int32",
                              "id": 2
                            },
                            "pageToken": {
                              "type": "string",
                              "id": 3
                            }
                          }
                        },
                        "ListDatabaseRolesResponse": {
                          "fields": {
                            "databaseRoles": {
                              "rule": "repeated",
                              "type": "DatabaseRole",
                              "id": 1
                            },
                            "nextPageToken": {
                              "type": "string",
                              "id": 2
                            }
                          }
                        }
                      }
                    }
                  }
                },
                "instance": {
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                      "options": {
                        "csharp_namespace": "Google.Cloud.Spanner.Admin.Instance.V1",
                        "go_package": "cloud.google.com/go/spanner/admin/instance/apiv1/instancepb;instancepb",
                        "java_multiple_files": true,
                        "java_outer_classname": "SpannerInstanceAdminProto",
                        "java_package": "com.google.spanner.admin.instance.v1",
                        "php_namespace": "Google\\Cloud\\Spanner\\Admin\\Instance\\V1",
                        "ruby_package": "Google::Cloud::Spanner::Admin::Instance::V1"
                      },
                      "nested": {
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                          "fields": {
                            "progressPercent": {
                              "type": "int32",
                              "id": 1
                            },
                            "startTime": {
                              "type": "google.protobuf.Timestamp",
                              "id": 2
                            },
                            "endTime": {
                              "type": "google.protobuf.Timestamp",
                              "id": 3
                            }
                          }
                        },
                        "FulfillmentPeriod": {
                          "values": {
                            "FULFILLMENT_PERIOD_UNSPECIFIED": 0,
                            "FULFILLMENT_PERIOD_NORMAL": 1,
                            "FULFILLMENT_PERIOD_EXTENDED": 2
                          }
                        },
                        "InstanceAdmin": {
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                            "(google.api.default_host)": "spanner.googleapis.com",
                            "(google.api.oauth_scopes)": "https://www.googleapis.com/auth/cloud-platform,https://www.googleapis.com/auth/spanner.admin"
                          },
                          "methods": {
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                              "requestType": "ListInstanceConfigsRequest",
                              "responseType": "ListInstanceConfigsResponse",
                              "options": {
                                "(google.api.http).get": "/v1/{parent=projects/*}/instanceConfigs",
                                "(google.api.method_signature)": "parent"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "get": "/v1/{parent=projects/*}/instanceConfigs"
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                                },
                                {
                                  "(google.api.method_signature)": "parent"
                                }
                              ]
                            },
                            "GetInstanceConfig": {
                              "requestType": "GetInstanceConfigRequest",
                              "responseType": "InstanceConfig",
                              "options": {
                                "(google.api.http).get": "/v1/{name=projects/*/instanceConfigs/*}",
                                "(google.api.method_signature)": "name"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "get": "/v1/{name=projects/*/instanceConfigs/*}"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "name"
                                }
                              ]
                            },
                            "CreateInstanceConfig": {
                              "requestType": "CreateInstanceConfigRequest",
                              "responseType": "google.longrunning.Operation",
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                                "(google.api.http).post": "/v1/{parent=projects/*}/instanceConfigs",
                                "(google.api.http).body": "*",
                                "(google.api.method_signature)": "parent,instance_config,instance_config_id",
                                "(google.longrunning.operation_info).response_type": "google.spanner.admin.instance.v1.InstanceConfig",
                                "(google.longrunning.operation_info).metadata_type": "google.spanner.admin.instance.v1.CreateInstanceConfigMetadata"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "post": "/v1/{parent=projects/*}/instanceConfigs",
                                    "body": "*"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "parent,instance_config,instance_config_id"
                                },
                                {
                                  "(google.longrunning.operation_info)": {
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                                    "metadata_type": "google.spanner.admin.instance.v1.CreateInstanceConfigMetadata"
                                  }
                                }
                              ]
                            },
                            "UpdateInstanceConfig": {
                              "requestType": "UpdateInstanceConfigRequest",
                              "responseType": "google.longrunning.Operation",
                              "options": {
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                                "(google.api.method_signature)": "instance_config,update_mask",
                                "(google.longrunning.operation_info).response_type": "google.spanner.admin.instance.v1.InstanceConfig",
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                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "patch": "/v1/{instance_config.name=projects/*/instanceConfigs/*}",
                                    "body": "*"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "instance_config,update_mask"
                                },
                                {
                                  "(google.longrunning.operation_info)": {
                                    "response_type": "google.spanner.admin.instance.v1.InstanceConfig",
                                    "metadata_type": "google.spanner.admin.instance.v1.UpdateInstanceConfigMetadata"
                                  }
                                }
                              ]
                            },
                            "DeleteInstanceConfig": {
                              "requestType": "DeleteInstanceConfigRequest",
                              "responseType": "google.protobuf.Empty",
                              "options": {
                                "(google.api.http).delete": "/v1/{name=projects/*/instanceConfigs/*}",
                                "(google.api.method_signature)": "name"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "delete": "/v1/{name=projects/*/instanceConfigs/*}"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "name"
                                }
                              ]
                            },
                            "ListInstanceConfigOperations": {
                              "requestType": "ListInstanceConfigOperationsRequest",
                              "responseType": "ListInstanceConfigOperationsResponse",
                              "options": {
                                "(google.api.http).get": "/v1/{parent=projects/*}/instanceConfigOperations",
                                "(google.api.method_signature)": "parent"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "get": "/v1/{parent=projects/*}/instanceConfigOperations"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "parent"
                                }
                              ]
                            },
                            "ListInstances": {
                              "requestType": "ListInstancesRequest",
                              "responseType": "ListInstancesResponse",
                              "options": {
                                "(google.api.http).get": "/v1/{parent=projects/*}/instances",
                                "(google.api.method_signature)": "parent"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "get": "/v1/{parent=projects/*}/instances"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "parent"
                                }
                              ]
                            },
                            "ListInstancePartitions": {
                              "requestType": "ListInstancePartitionsRequest",
                              "responseType": "ListInstancePartitionsResponse",
                              "options": {
                                "(google.api.http).get": "/v1/{parent=projects/*/instances/*}/instancePartitions",
                                "(google.api.method_signature)": "parent"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "get": "/v1/{parent=projects/*/instances/*}/instancePartitions"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "parent"
                                }
                              ]
                            },
                            "GetInstance": {
                              "requestType": "GetInstanceRequest",
                              "responseType": "Instance",
                              "options": {
                                "(google.api.http).get": "/v1/{name=projects/*/instances/*}",
                                "(google.api.method_signature)": "name"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "get": "/v1/{name=projects/*/instances/*}"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "name"
                                }
                              ]
                            },
                            "CreateInstance": {
                              "requestType": "CreateInstanceRequest",
                              "responseType": "google.longrunning.Operation",
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                                "(google.api.http).body": "*",
                                "(google.api.method_signature)": "parent,instance_id,instance",
                                "(google.longrunning.operation_info).response_type": "google.spanner.admin.instance.v1.Instance",
                                "(google.longrunning.operation_info).metadata_type": "google.spanner.admin.instance.v1.CreateInstanceMetadata"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "post": "/v1/{parent=projects/*}/instances",
                                    "body": "*"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "parent,instance_id,instance"
                                },
                                {
                                  "(google.longrunning.operation_info)": {
                                    "response_type": "google.spanner.admin.instance.v1.Instance",
                                    "metadata_type": "google.spanner.admin.instance.v1.CreateInstanceMetadata"
                                  }
                                }
                              ]
                            },
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                              "responseType": "google.longrunning.Operation",
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                                "(google.api.method_signature)": "instance,field_mask",
                                "(google.longrunning.operation_info).response_type": "google.spanner.admin.instance.v1.Instance",
                                "(google.longrunning.operation_info).metadata_type": "google.spanner.admin.instance.v1.UpdateInstanceMetadata"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "patch": "/v1/{instance.name=projects/*/instances/*}",
                                    "body": "*"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "instance,field_mask"
                                },
                                {
                                  "(google.longrunning.operation_info)": {
                                    "response_type": "google.spanner.admin.instance.v1.Instance",
                                    "metadata_type": "google.spanner.admin.instance.v1.UpdateInstanceMetadata"
                                  }
                                }
                              ]
                            },
                            "DeleteInstance": {
                              "requestType": "DeleteInstanceRequest",
                              "responseType": "google.protobuf.Empty",
                              "options": {
                                "(google.api.http).delete": "/v1/{name=projects/*/instances/*}",
                                "(google.api.method_signature)": "name"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "delete": "/v1/{name=projects/*/instances/*}"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "name"
                                }
                              ]
                            },
                            "SetIamPolicy": {
                              "requestType": "google.iam.v1.SetIamPolicyRequest",
                              "responseType": "google.iam.v1.Policy",
                              "options": {
                                "(google.api.http).post": "/v1/{resource=projects/*/instances/*}:setIamPolicy",
                                "(google.api.http).body": "*",
                                "(google.api.method_signature)": "resource,policy"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "post": "/v1/{resource=projects/*/instances/*}:setIamPolicy",
                                    "body": "*"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "resource,policy"
                                }
                              ]
                            },
                            "GetIamPolicy": {
                              "requestType": "google.iam.v1.GetIamPolicyRequest",
                              "responseType": "google.iam.v1.Policy",
                              "options": {
                                "(google.api.http).post": "/v1/{resource=projects/*/instances/*}:getIamPolicy",
                                "(google.api.http).body": "*",
                                "(google.api.method_signature)": "resource"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "post": "/v1/{resource=projects/*/instances/*}:getIamPolicy",
                                    "body": "*"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "resource"
                                }
                              ]
                            },
                            "TestIamPermissions": {
                              "requestType": "google.iam.v1.TestIamPermissionsRequest",
                              "responseType": "google.iam.v1.TestIamPermissionsResponse",
                              "options": {
                                "(google.api.http).post": "/v1/{resource=projects/*/instances/*}:testIamPermissions",
                                "(google.api.http).body": "*",
                                "(google.api.method_signature)": "resource,permissions"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "post": "/v1/{resource=projects/*/instances/*}:testIamPermissions",
                                    "body": "*"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "resource,permissions"
                                }
                              ]
                            },
                            "GetInstancePartition": {
                              "requestType": "GetInstancePartitionRequest",
                              "responseType": "InstancePartition",
                              "options": {
                                "(google.api.http).get": "/v1/{name=projects/*/instances/*/instancePartitions/*}",
                                "(google.api.method_signature)": "name"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "get": "/v1/{name=projects/*/instances/*/instancePartitions/*}"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "name"
                                }
                              ]
                            },
                            "CreateInstancePartition": {
                              "requestType": "CreateInstancePartitionRequest",
                              "responseType": "google.longrunning.Operation",
                              "options": {
                                "(google.api.http).post": "/v1/{parent=projects/*/instances/*}/instancePartitions",
                                "(google.api.http).body": "*",
                                "(google.api.method_signature)": "parent,instance_partition,instance_partition_id",
                                "(google.longrunning.operation_info).response_type": "google.spanner.admin.instance.v1.InstancePartition",
                                "(google.longrunning.operation_info).metadata_type": "google.spanner.admin.instance.v1.CreateInstancePartitionMetadata"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
                                    "post": "/v1/{parent=projects/*/instances/*}/instancePartitions",
                                    "body": "*"
                                  }
                                },
                                {
                                  "(google.api.method_signature)": "parent,instance_partition,instance_partition_id"
                                },
                                {
                                  "(google.longrunning.operation_info)": {
                                    "response_type": "google.spanner.admin.instance.v1.InstancePartition",
                                    "metadata_type": "google.spanner.admin.instance.v1.CreateInstancePartitionMetadata"
                                  }
                                }
                              ]
                            },
                            "DeleteInstancePartition": {
                              "requestType": "DeleteInstancePartitionRequest",
                              "responseType": "google.protobuf.Empty",
                              "options": {
                                "(google.api.http).delete": "/v1/{name=projects/*/instances/*/instancePartitions/*}",
                                "(google.api.method_signature)": "name"
                              },
                              "parsedOptions": [
                                {
                                  "(google.api.http)": {
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