fix: linting issue.

Signed-off-by: Teryl Taylor <[email protected]>

Author: Teryl Taylor

mcpgateway/plugins/framework/models.py

@@ -775,6 +775,9 @@ def __iter__(self):
     def __getitem__(self, item: str) -> str:
         """Custom getitem function to override root attribute.
 
+        Args:
+            item: The http header key.
+
         Returns:
             A custom accesser for the header dictionary.
         """