def get_field_deserializers(self,) -> dict[str, Callable[[ParseNode], None]]:
        """
        The deserialization information for the current model
        Returns: dict[str, Callable[[ParseNode], None]]
        """
        from .access_package_custom_extension_stage import AccessPackageCustomExtensionStage
        from .custom_extension_data import CustomExtensionData

        from .access_package_custom_extension_stage import AccessPackageCustomExtensionStage
        from .custom_extension_data import CustomExtensionData

        fields: dict[str, Callable[[Any], None]] = {
            "customExtensionStageInstanceDetail": lambda n : setattr(self, 'custom_extension_stage_instance_detail', n.get_str_value()),
            "customExtensionStageInstanceId": lambda n : setattr(self, 'custom_extension_stage_instance_id', n.get_str_value()),
            "stage": lambda n : setattr(self, 'stage', n.get_enum_value(AccessPackageCustomExtensionStage)),
            "state": lambda n : setattr(self, 'state', n.get_str_value()),
        }
        super_fields = super().get_field_deserializers()
        fields.update(super_fields)
        return fields

        The deserialization information for the current model
        Returns: dict[str, Callable[[ParseNode], None]]
        
msgraph/generated/models/access_package_assignment_request_callback_data.py