refactor: Refactor loop to list comprehension for performance optimization

fastapi/encoders.py

@@ -297,9 +297,7 @@ def jsonable_encoder(
                 encoded_dict[encoded_key] = encoded_value
         return encoded_dict
     if isinstance(obj, (list, set, frozenset, GeneratorType, tuple, deque)):
-        encoded_list = []
+        return [
-        for item in obj:
-            encoded_list.append(
             jsonable_encoder(
                 item,
                 include=include,
@@ -311,8 +309,8 @@ def jsonable_encoder(
                 custom_encoder=custom_encoder,
                 sqlalchemy_safe=sqlalchemy_safe,
             )
-            )
+            for item in obj
-        return encoded_list
+        ]
 
     if type(obj) in ENCODERS_BY_TYPE:
         return ENCODERS_BY_TYPE[type(obj)](obj)