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test_model_garden.py
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test_model_garden.py
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import json
import os
from typing import Optional
import pytest
from langchain_core.messages import (
AIMessage,
AIMessageChunk,
BaseMessage,
HumanMessage,
SystemMessage,
)
from langchain_core.outputs import LLMResult
from langchain_core.tools import tool
from pydantic import BaseModel
from langchain_google_vertexai.model_garden import (
ChatAnthropicVertex,
VertexAIModelGarden,
)
@pytest.mark.extended
@pytest.mark.parametrize(
"endpoint_os_variable_name,result_arg",
[("FALCON_ENDPOINT_ID", "generated_text"), ("LLAMA_ENDPOINT_ID", None)],
)
def test_model_garden(
endpoint_os_variable_name: str, result_arg: Optional[str]
) -> None:
"""In order to run this test, you should provide endpoint names.
Example:
export FALCON_ENDPOINT_ID=...
export LLAMA_ENDPOINT_ID=...
export PROJECT_ID=...
"""
endpoint_id = os.environ[endpoint_os_variable_name]
project = os.environ["PROJECT_ID"]
location = "us-central1"
llm = VertexAIModelGarden(
endpoint_id=endpoint_id,
project=project,
result_arg=result_arg,
location=location,
)
output = llm("What is the meaning of life?")
assert isinstance(output, str)
print(output)
assert llm._llm_type == "vertexai_model_garden"
@pytest.mark.extended
@pytest.mark.parametrize(
"endpoint_os_variable_name,result_arg",
[("FALCON_ENDPOINT_ID", "generated_text"), ("LLAMA_ENDPOINT_ID", None)],
)
def test_model_garden_generate(
endpoint_os_variable_name: str, result_arg: Optional[str]
) -> None:
"""In order to run this test, you should provide endpoint names.
Example:
export FALCON_ENDPOINT_ID=...
export LLAMA_ENDPOINT_ID=...
export PROJECT_ID=...
"""
endpoint_id = os.environ[endpoint_os_variable_name]
project = os.environ["PROJECT_ID"]
location = "us-central1"
llm = VertexAIModelGarden(
endpoint_id=endpoint_id,
project=project,
result_arg=result_arg,
location=location,
)
output = llm.generate(["What is the meaning of life?", "How much is 2+2"])
assert isinstance(output, LLMResult)
assert len(output.generations) == 2
@pytest.mark.extended
@pytest.mark.asyncio
@pytest.mark.parametrize(
"endpoint_os_variable_name,result_arg",
[("FALCON_ENDPOINT_ID", "generated_text"), ("LLAMA_ENDPOINT_ID", None)],
)
async def test_model_garden_agenerate(
endpoint_os_variable_name: str, result_arg: Optional[str]
) -> None:
endpoint_id = os.environ[endpoint_os_variable_name]
project = os.environ["PROJECT_ID"]
location = "us-central1"
llm = VertexAIModelGarden(
endpoint_id=endpoint_id,
project=project,
result_arg=result_arg,
location=location,
)
output = await llm.agenerate(["What is the meaning of life?", "How much is 2+2"])
assert isinstance(output, LLMResult)
assert len(output.generations) == 2
@pytest.mark.extended
def test_anthropic() -> None:
project = os.environ["PROJECT_ID"]
location = "us-central1"
model = ChatAnthropicVertex(
project=project,
location=location,
)
raw_context = (
"My name is Peter. You are my personal assistant. My favorite movies "
"are Lord of the Rings and Hobbit."
)
question = (
"Hello, could you recommend a good movie for me to watch this evening, please?"
)
context = SystemMessage(content=raw_context)
message = HumanMessage(content=question)
response = model.invoke([context, message], model_name="claude-3-sonnet@20240229")
assert isinstance(response, AIMessage)
assert isinstance(response.content, str)
@pytest.mark.extended
def test_anthropic_stream() -> None:
project = os.environ["PROJECT_ID"]
location = "us-central1"
model = ChatAnthropicVertex(
project=project,
location=location,
)
question = (
"Hello, could you recommend a good movie for me to watch this evening, please?"
)
message = HumanMessage(content=question)
sync_response = model.stream([message], model="claude-3-sonnet@20240229")
for chunk in sync_response:
assert isinstance(chunk, AIMessageChunk)
@pytest.mark.extended
async def test_anthropic_async() -> None:
project = os.environ["PROJECT_ID"]
location = "us-central1"
model = ChatAnthropicVertex(
project=project,
location=location,
)
raw_context = (
"My name is Peter. You are my personal assistant. My favorite movies "
"are Lord of the Rings and Hobbit."
)
question = (
"Hello, could you recommend a good movie for me to watch this evening, please?"
)
context = SystemMessage(content=raw_context)
message = HumanMessage(content=question)
response = await model.ainvoke(
[context, message], model_name="claude-3-sonnet@20240229", temperature=0.2
)
assert isinstance(response, AIMessage)
assert isinstance(response.content, str)
def _check_tool_calls(response: BaseMessage, expected_name: str) -> None:
"""Check tool calls are as expected."""
assert isinstance(response, AIMessage)
assert isinstance(response.content, str)
tool_calls = response.tool_calls
assert len(tool_calls) == 1
tool_call = tool_calls[0]
assert tool_call["name"] == expected_name
assert tool_call["args"] == {"age": 27.0, "name": "Erick"}
@pytest.mark.extended
def test_anthropic_tool_calling() -> None:
project = os.environ["PROJECT_ID"]
location = "us-east5"
model = ChatAnthropicVertex(
project=project,
location=location,
)
class MyModel(BaseModel):
name: str
age: int
# Test .bind_tools with BaseModel
message = HumanMessage(content="My name is Erick and I am 27 years old")
model_with_tools = model.bind_tools([MyModel], model_name="claude-3-opus@20240229")
response = model_with_tools.invoke([message])
_check_tool_calls(response, "MyModel")
# Test .bind_tools with function
def my_model(name: str, age: int) -> None:
"""Invoke this with names and ages."""
pass
model_with_tools = model.bind_tools([my_model], model_name="claude-3-opus@20240229")
response = model_with_tools.invoke([message])
_check_tool_calls(response, "my_model")
# Test .bind_tools with tool
@tool
def my_tool(name: str, age: int) -> None:
"""Invoke this with names and ages."""
pass
model_with_tools = model.bind_tools([my_tool], model_name="claude-3-opus@20240229")
response = model_with_tools.invoke([message])
_check_tool_calls(response, "my_tool")
# Test streaming
stream = model_with_tools.stream([message])
first = True
for chunk in stream:
if first:
gathered = chunk
first = False
else:
gathered = gathered + chunk # type: ignore
assert isinstance(gathered, AIMessageChunk)
assert len(gathered.tool_call_chunks) == 1
tool_call_chunk = gathered.tool_call_chunks[0]
assert tool_call_chunk["name"] == "my_tool"
assert tool_call_chunk["args"]
if tool_call_chunk["args"]:
assert json.loads(tool_call_chunk["args"]) == {"age": 27.0, "name": "Erick"}
@pytest.mark.extended
def test_anthropic_with_structured_output() -> None:
project = os.environ["PROJECT_ID"]
location = "us-east5"
model = ChatAnthropicVertex(
project=project,
location=location,
model="claude-3-opus@20240229",
)
class MyModel(BaseModel):
name: str
age: int
message = HumanMessage(content="My name is Erick and I am 27 years old")
model_with_structured_output = model.with_structured_output(MyModel)
response = model_with_structured_output.invoke([message])
assert isinstance(response, MyModel)
assert response.name == "Erick"
assert response.age == 27