switch falsy check to is None

Author: alexander-alderman-webb

sentry_sdk/integrations/pydantic_ai/patches/agent_run.py

@@ -112,7 +112,7 @@ async def wrapper(self: "Any", *args: "Any", **kwargs: "Any") -> "Any":
 
             if PydanticAIIntegration.are_request_hooks_available:
                 metadata = kwargs.get("metadata")
-                if not metadata:
+                if metadata is None:
                     kwargs["metadata"] = {"_sentry_span": None}
 
             # Create invoke_agent span
@@ -161,7 +161,7 @@ def wrapper(self: "Any", *args: "Any", **kwargs: "Any") -> "Any":
 
         if PydanticAIIntegration.are_request_hooks_available:
             metadata = kwargs.get("metadata")
-            if not metadata:
+            if metadata is None:
                 kwargs["metadata"] = {"_sentry_span": None}
 
         # Call original function to get the context manager