fix linting

Author: martimfasantos

src/a2a/utils/__init__.py

@@ -1,20 +1,10 @@
 """Utility functions for the A2A Python SDK."""
 
 from a2a.utils.artifact import (
+    get_artifact_text,
     new_artifact,
     new_data_artifact,
     new_text_artifact,
-    get_artifact_text,
-)
-from a2a.utils.message import (
-    new_agent_text_message,
-    new_agent_parts_message,
-    get_message_text,
-)
-from a2a.utils.parts import (
-    get_data_parts,
-    get_file_parts,
-    get_text_parts,
 )
 from a2a.utils.constants import (
     AGENT_CARD_WELL_KNOWN_PATH,
@@ -28,6 +18,16 @@
     build_text_artifact,
     create_task_obj,
 )
+from a2a.utils.message import (
+    get_message_text,
+    new_agent_parts_message,
+    new_agent_text_message,
+)
+from a2a.utils.parts import (
+    get_data_parts,
+    get_file_parts,
+    get_text_parts,
+)
 from a2a.utils.task import (
     completed_task,
     new_task,

src/a2a/utils/parts.py

@@ -1,7 +1,5 @@
 """Utility functions for creating and handling A2A Parts objects."""
 
-import uuid
-
 from typing import Any
 
 from a2a.types import (