langchain/docs/extras/modules/agents/tools/tools_as_openai_functions.ipynb

Tools as OpenAI Functions

This notebook goes over how to use LangChain tools as OpenAI functions.

In [1]:

from langchain.chat_models import ChatOpenAI
from langchain.schema import HumanMessage

In [2]:

model = ChatOpenAI(model="gpt-3.5-turbo-0613")

In [3]:

from langchain.tools import MoveFileTool, format_tool_to_openai_function

In [4]:

tools = [MoveFileTool()]
functions = [format_tool_to_openai_function(t) for t in tools]

In [5]:

message = model.predict_messages(
    [HumanMessage(content="move file foo to bar")], functions=functions
)

In [6]:

message

Out [6]:

AIMessage(content='', additional_kwargs={'function_call': {'name': 'move_file', 'arguments': '{\n  "source_path": "foo",\n  "destination_path": "bar"\n}'}}, example=False)

In [8]:

message.additional_kwargs["function_call"]

Out [8]:

{'name': 'move_file',
 'arguments': '{\n  "source_path": "foo",\n  "destination_path": "bar"\n}'}

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