Update youtube_utils.py

youtube_utils.py

@@ -34,17 +34,20 @@ class YouTubeTranscriptTool(Tool):
         "language": {
             "type": "string",
             "description": "Language code (e.g., 'en', 'es', 'fr'). Optional, defaults to auto-detect",
-            "default": "auto"
+            "default": "auto",
+            "nullable": True,
         },
         "include_timestamps": {
             "type": "boolean",
             "description": "Whether to include timestamps in the output",
             "default": False
+            "nullable": True,
         },
         "clean_text": {
             "type": "boolean",
             "description": "Whether to clean and format the text (remove extra spaces, fix punctuation)",
             "default": True
+            "nullable": True,
         }
     }