'BedrockChat' object has no attribute 'bind_tools'

evandrofranco commented 6 months ago

Checked other resources

[X] I added a very descriptive title to this issue.
[X] I searched the LangChain documentation with the integrated search.
[X] I used the GitHub search to find a similar question and didn't find it.
[X] I am sure that this is a bug in LangChain rather than my code.
[X] The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

import boto3
import json
from langchain_community.chat_models import BedrockChat
from langchain.agents import tool
from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder

boto3_bedrock = boto3.client('bedrock-runtime')
modelId = "anthropic.claude-3-sonnet-20240229-v1:0"

llm = BedrockChat(
    model_id=modelId, 
    client = boto3_bedrock
)

@tool
def get_word_length(word: str) -> int:
    """Returns the length of a word."""
    return len(word)

#get_word_length.invoke("abc")

tools = [get_word_length]

prompt = ChatPromptTemplate.from_messages(
    [
        (
            "system",
            "You are very powerful assistant, but don't know current events",
        ),
        ("user", "{input}"),
        MessagesPlaceholder(variable_name="agent_scratchpad"),
    ]
)

llm_with_tools = llm.bind_tools(tools)

Error Message and Stack Trace (if applicable)

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Cell In[7], line 1
----> 1 llm_with_tools = llm.bind_tools(tools)

AttributeError: 'BedrockChat' object has no attribute 'bind_tools'