fix(SlackToolKit) for get_channel tool - Fixes - langchain-ai/langchain-community/issues/325

libs/community/langchain_community/tools/slack/get_channel.py

@@ -1,11 +1,28 @@
 import json
 import logging
-from typing import Any, List, Optional
+
+from pydantic import BaseModel
+from typing import Any, List, Optional, Type
 
 from langchain_core.callbacks import CallbackManagerForToolRun
 
 from langchain_community.tools.slack.base import SlackBaseTool
 
+class SlackGetChannelSchema(BaseModel):
+    """Placeholder input schema for SlackGetChannel.
+
+    This class is intentionally minimal and serves as a placeholder for the
+    tool's argument schema. It exists so the tool machinery can introspect
+    the expected argument type. Add fields here later if the tool requires
+    structured inputs such as pagination cursors or filters.
+
+    Note:
+        No arguments are currently defined for this schema. If/when fields
+        are added, document them in an ``Args`` section following Google
+        style docstrings.
+    """
+    pass
+
 
 class SlackGetChannel(SlackBaseTool):
     """Tool that gets Slack channel information."""
@@ -14,6 +31,7 @@ class SlackGetChannel(SlackBaseTool):
     description: str = (
         "Use this tool to get channelid-name dict. There is no input to this tool"
     )
+    args_schema: Type[SlackGetChannelSchema] = SlackGetChannelSchema
 
     def _get_all_channels_by_type(self, types: str = "public_channel") -> List[dict]:
         """