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feat:support Langchain tools that has run_manager in _run args and don't have args_schema populated

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PiperOrigin-RevId: 765405793
This commit is contained in:
Xiang (Sean) Zhou
2025-05-30 18:05:02 -07:00
committed by Copybara-Service
parent e06e6753ad
commit 3616bb5fc4
4 changed files with 72 additions and 11 deletions
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8
contributing/samples/langchain_youtube_search_agent/README.md Normal file
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# Langchain Youtube Search Agent
This agent utilize the Lanchain YoutubeSearchTool to search youtubes.
You need to install below dependencies:
```python
uv pip install youtube_search
```

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contributing/samples/langchain_youtube_search_agent/__init__.py Normal file
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# Copyright 2025 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from . import agent

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contributing/samples/langchain_youtube_search_agent/agent.py Normal file
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# Copyright 2025 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from google.adk.agents import LlmAgent
from google.adk.tools.langchain_tool import LangchainTool
from langchain_community.tools import YouTubeSearchTool
# Instantiate the tool
langchain_yt_tool = YouTubeSearchTool()
# Wrap the tool in the LangchainTool class from ADK
adk_yt_tool = LangchainTool(
tool=langchain_yt_tool,
)
root_agent = LlmAgent(
name="youtube_search_agent",
model="gemini-2.0-flash", # Replace with the actual model name
instruction="""
Ask customer to provide singer name, and the number of videos to search.
""",
description="Help customer to search for a video on Youtube.",
tools=[adk_yt_tool],
output_key="youtube_search_output",
)