Add Missing Extra Param in Live Metadata Class

Author: davidvonthenen

deepgram/clients/live/v1/response.py

@@ -92,13 +92,18 @@ class Metadata:
         default=None, metadata=config(exclude=lambda f: f is None)
     )
     model_uuid: Optional[str] = ""
+    extra: Optional[Dict[str, str]] = field(
+        default=None, metadata=config(exclude=lambda f: f is None)
+    )
 
     def __getitem__(self, key):
         _dict = self.to_dict()
         if "model_info" in _dict:
             _dict["model_info"] = [
                 ModelInfo.from_dict(model_info) for model_info in _dict["model_info"]
             ]
+        if "extra" in _dict:
+            _dict["extra"] = [str(extra) for _, extra in _dict["extra"].items()]
         return _dict[key]
 
     def __str__(self) -> str: