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_action import AccessAction
        from .drive_item import DriveItem
        from .entity import Entity
        from .identity_set import IdentitySet

        from .access_action import AccessAction
        from .drive_item import DriveItem
        from .entity import Entity
        from .identity_set import IdentitySet

        fields: dict[str, Callable[[Any], None]] = {
            "access": lambda n : setattr(self, 'access', n.get_object_value(AccessAction)),
            "activityDateTime": lambda n : setattr(self, 'activity_date_time', n.get_datetime_value()),
            "actor": lambda n : setattr(self, 'actor', n.get_object_value(IdentitySet)),
            "driveItem": lambda n : setattr(self, 'drive_item', n.get_object_value(DriveItem)),
        }
        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/item_activity.py