From ff2f9c02e89d8be7465c021cd1743096a5e78be0 Mon Sep 17 00:00:00 2001 From: Jeff Park Date: Tue, 19 Nov 2024 14:58:00 -0500 Subject: [PATCH 1/2] refactor: simplify content processing in anthropic formatter --- .../_anthropic_parsers.py | 19 +++++--- .../langchain_google_vertexai/model_garden.py | 23 ++++++--- libs/vertexai/pyproject.toml | 1 + .../integration_tests/test_model_garden.py | 2 +- .../tests/unit_tests/test_chat_models.py | 47 +++++++++++++++++++ 5 files changed, 78 insertions(+), 14 deletions(-) diff --git a/libs/vertexai/langchain_google_vertexai/_anthropic_parsers.py b/libs/vertexai/langchain_google_vertexai/_anthropic_parsers.py index a31759bf..d979f20e 100644 --- a/libs/vertexai/langchain_google_vertexai/_anthropic_parsers.py +++ b/libs/vertexai/langchain_google_vertexai/_anthropic_parsers.py @@ -1,4 +1,4 @@ -from typing import Any, List, Optional, Type +from typing import Any, List, Optional, Type, Union from langchain_core.messages import AIMessage, ToolCall from langchain_core.messages.tool import tool_call @@ -55,11 +55,18 @@ def _pydantic_parse(self, tool_call: dict) -> BaseModel: return cls_(**tool_call["args"]) -def _extract_tool_calls(content: List[dict]) -> List[ToolCall]: - tool_calls = [] - for block in content: - if block["type"] == "tool_use": +def _extract_tool_calls(content: Union[str, List[Union[str, dict]]]) -> List[ToolCall]: + """Extract tool calls from a list of content blocks.""" + if isinstance(content, list): + tool_calls = [] + for block in content: + if isinstance(block, str): + continue + if block["type"] != "tool_use": + continue tool_calls.append( tool_call(name=block["name"], args=block["input"], id=block["id"]) ) - return tool_calls + return tool_calls + else: + return [] diff --git a/libs/vertexai/langchain_google_vertexai/model_garden.py b/libs/vertexai/langchain_google_vertexai/model_garden.py index 7afa8071..ab553f6e 100644 --- a/libs/vertexai/langchain_google_vertexai/model_garden.py +++ b/libs/vertexai/langchain_google_vertexai/model_garden.py @@ -153,15 +153,20 @@ def validate_environment(self) -> Self: AsyncAnthropicVertex, ) + if self.project is None: + raise ValueError("project is required for ChatAnthropicVertex") + + project_id: str = self.project + self.client = AnthropicVertex( - project_id=self.project, + project_id=project_id, region=self.location, max_retries=self.max_retries, access_token=self.access_token, credentials=self.credentials, ) self.async_client = AsyncAnthropicVertex( - project_id=self.project, + project_id=project_id, region=self.location, max_retries=self.max_retries, access_token=self.access_token, @@ -205,14 +210,18 @@ def _format_params( def _format_output(self, data: Any, **kwargs: Any) -> ChatResult: data_dict = data.model_dump() - content = [c for c in data_dict["content"] if c["type"] != "tool_use"] - content = content[0]["text"] if len(content) == 1 else content + content = data_dict["content"] llm_output = { k: v for k, v in data_dict.items() if k not in ("content", "role", "type") } - tool_calls = _extract_tool_calls(data_dict["content"]) - if tool_calls: - msg = AIMessage(content=content, tool_calls=tool_calls) + if len(content) == 1 and content[0]["type"] == "text": + msg = AIMessage(content=content[0]["text"]) + elif any(block["type"] == "tool_use" for block in content): + tool_calls = _extract_tool_calls(content) + msg = AIMessage( + content=content, + tool_calls=tool_calls, + ) else: msg = AIMessage(content=content) # Collect token usage diff --git a/libs/vertexai/pyproject.toml b/libs/vertexai/pyproject.toml index bd80636f..916f0963 100644 --- a/libs/vertexai/pyproject.toml +++ b/libs/vertexai/pyproject.toml @@ -42,6 +42,7 @@ numpy = [ google-api-python-client = "^2.117.0" langchain = "^0.3.7" langchain-tests = "0.3.1" +anthropic = { extras = ["vertexai"], version = ">=0.35.0,<1" } [tool.codespell] diff --git a/libs/vertexai/tests/integration_tests/test_model_garden.py b/libs/vertexai/tests/integration_tests/test_model_garden.py index a0946a6c..6b90d591 100644 --- a/libs/vertexai/tests/integration_tests/test_model_garden.py +++ b/libs/vertexai/tests/integration_tests/test_model_garden.py @@ -168,7 +168,7 @@ async def test_anthropic_async() -> None: 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) + assert isinstance(response.content, list) tool_calls = response.tool_calls assert len(tool_calls) == 1 tool_call = tool_calls[0] diff --git a/libs/vertexai/tests/unit_tests/test_chat_models.py b/libs/vertexai/tests/unit_tests/test_chat_models.py index e9da74ea..06567e71 100644 --- a/libs/vertexai/tests/unit_tests/test_chat_models.py +++ b/libs/vertexai/tests/unit_tests/test_chat_models.py @@ -41,6 +41,7 @@ _parse_examples, _parse_response_candidate, ) +from langchain_google_vertexai.model_garden import ChatAnthropicVertex def test_init() -> None: @@ -1067,3 +1068,49 @@ def test_init_client_with_custom_api() -> None: transport = mock_prediction_service.call_args.kwargs["transport"] assert client_options.api_endpoint == "https://example.com" assert transport == "rest" + + +def test_anthropic_format_output() -> None: + """Test format output handles different content structures correctly.""" + + @dataclass + class Usage: + input_tokens: int + output_tokens: int + + @dataclass + class Message: + def model_dump(self): + return { + "content": [ + { + "type": "tool_use", + "id": "123", + "name": "calculator", + "input": {"number": 42}, + } + ], + "model": "baz", + "role": "assistant", + "usage": Usage(input_tokens=2, output_tokens=1), + "type": "message", + } + + usage: Usage + + test_msg = Message(usage=Usage(input_tokens=2, output_tokens=1)) + + model = ChatAnthropicVertex(project="test-project", location="test-location") + result = model._format_output(test_msg) + + message = result.generations[0].message + assert isinstance(message, AIMessage) + assert message.content == test_msg.model_dump()["content"] + assert len(message.tool_calls) == 1 + assert message.tool_calls[0]["name"] == "calculator" + assert message.tool_calls[0]["args"] == {"number": 42} + assert message.usage_metadata == { + "input_tokens": 2, + "output_tokens": 1, + "total_tokens": 3, + } From f3173c437e7eecdac6fd7c749d66dee6250c2ba4 Mon Sep 17 00:00:00 2001 From: Jeff Park Date: Tue, 19 Nov 2024 18:49:57 -0500 Subject: [PATCH 2/2] chore: updating poetry.lock --- libs/vertexai/poetry.lock | 55 ++++++++++++++++++++++++++++++++++++--- 1 file changed, 51 insertions(+), 4 deletions(-) diff --git a/libs/vertexai/poetry.lock b/libs/vertexai/poetry.lock index 96425c97..b3b85815 100644 --- a/libs/vertexai/poetry.lock +++ b/libs/vertexai/poetry.lock @@ -152,7 +152,7 @@ files = [ name = "anthropic" version = "0.37.1" description = "The official Python library for the anthropic API" -optional = true 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