tpl / model / add missing typing import: Tuple,Optional,BinaryIO,TextIO

Author: Nementon

end_to_end_tests/golden-record/my_test_api_client/models/a_model_with_properties_reference_that_are_not_object.py

@@ -1,6 +1,6 @@
 import datetime
 from io import BytesIO
-from typing import Any, Dict, List, Type, TypeVar, Union, cast
+from typing import Any, BinaryIO, Dict, List, Optional, TextIO, Tuple, Type, TypeVar, Union, cast
 
 import attr
 from dateutil.parser import isoparse

openapi_python_client/templates/model.py.jinja

@@ -1,4 +1,4 @@
-from typing import Any, Dict, Type, TypeVar
+from typing import Any, Dict, Type, TypeVar, Tuple, Optional, BinaryIO, TextIO
 
 {% if model.additional_properties %}
 from typing import List