Linting and old python version typing import

Author: tconley1428

src/agents/model_settings.py

@@ -1,15 +1,18 @@
 from __future__ import annotations
 
 import dataclasses
+from collections.abc import Mapping
 from dataclasses import dataclass, fields, replace
-from typing import Any, Literal, Annotated, TypeAlias, Mapping
+from typing import Annotated, Any, Literal
 
 from openai import Omit as _Omit
 from openai._types import Body, Query
 from openai.types.responses import ResponseIncludable
 from openai.types.shared import Reasoning
 from pydantic import BaseModel, GetCoreSchemaHandler
 from pydantic_core import core_schema
+from typing_extensions import TypeAlias
+
 
 class _OmitTypeAnnotation:
     @classmethod

tests/model_settings/test_serialization.py

@@ -4,6 +4,7 @@
 from openai.types.shared import Reasoning
 from pydantic import TypeAdapter
 from pydantic_core import to_json
+
 from agents.model_settings import ModelSettings
 
 
@@ -161,4 +162,4 @@ def test_pydantic_serialization() -> None:
     json = to_json(model_settings)
     deserialized = TypeAdapter(ModelSettings).validate_json(json)
 
-    assert model_settings == deserialized
+    assert model_settings == deserialized