chore: constructor shouldn't have return type hint.

Jacksunwei · copybara-github · commit f592de4cc091 · 2025-05-17T09:57:30.000-07:00
PiperOrigin-RevId: 760021373
diff --git a/src/google/adk/tools/mcp_tool/mcp_session_manager.py b/src/google/adk/tools/mcp_tool/mcp_session_manager.py
@@ -168,7 +168,7 @@ def __init__(
       connection_params: StdioServerParameters | SseServerParams,
       exit_stack: AsyncExitStack,
       errlog: TextIO = sys.stderr,
-  ) -> ClientSession:
+  ):
     """Initializes the MCP session manager.
 
     Example usage:
