change dev requirements to see if fix works (Azure#39042)

Author: MilesHolland

sdk/ml/azure-ai-ml/azure/ai/ml/_schema/core/fields.py

@@ -16,7 +16,7 @@
 
 from marshmallow import RAISE, fields
 from marshmallow.exceptions import ValidationError
-from marshmallow.fields import _T, Field, Nested
+from marshmallow.fields import Field, Nested
 from marshmallow.utils import FieldInstanceResolutionError, from_iso_datetime, resolve_field_instance
 
 from ..._utils._arm_id_utils import AMLVersionedArmId, is_ARM_id_for_resource, parse_name_label, parse_name_version
@@ -44,6 +44,7 @@
 from ..core.schema import PathAwareSchema
 
 module_logger = logging.getLogger(__name__)
+T = typing.TypeVar("T")
 
 
 class StringTransformedEnum(Field):
@@ -830,7 +831,7 @@ def _validate(self, value):
 class DumpableIntegerField(fields.Integer):
     """A int field that cannot serialize other type of values to int if self.strict."""
 
-    def _serialize(self, value, attr, obj, **kwargs) -> typing.Optional[typing.Union[str, _T]]:
+    def _serialize(self, value, attr, obj, **kwargs) -> typing.Optional[typing.Union[str, T]]:
         if self.strict and not isinstance(value, int):
             # this implementation can serialize bool to bool
             raise self.make_error("invalid", input=value)
@@ -856,14 +857,14 @@ def _validated(self, value):
             raise self.make_error("invalid", input=value)
         return super()._validated(value)
 
-    def _serialize(self, value, attr, obj, **kwargs) -> typing.Optional[typing.Union[str, _T]]:
+    def _serialize(self, value, attr, obj, **kwargs) -> typing.Optional[typing.Union[str, T]]:
         return super()._serialize(self._validated(value), attr, obj, **kwargs)
 
 
 class DumpableStringField(fields.String):
     """A string field that cannot serialize other type of values to string if self.strict."""
 
-    def _serialize(self, value, attr, obj, **kwargs) -> typing.Optional[typing.Union[str, _T]]:
+    def _serialize(self, value, attr, obj, **kwargs) -> typing.Optional[typing.Union[str, T]]:
         if not isinstance(value, str):
             raise ValidationError("Given value is not a string")
         return super()._serialize(value, attr, obj, **kwargs)

sdk/ml/azure-ai-ml/dev_requirements.txt

@@ -1,7 +1,7 @@
 -e ../../../tools/azure-sdk-tools
 ../../core/azure-core
 ../../identity/azure-identity
-marshmallow<3.20
+marshmallow
 marshmallow-jsonschema==0.10.0
 mock
 pytest-cov