def get_field_deserializers(self,) -> dict[str, Callable[[ParseNode], None]]:
        """
        The deserialization information for the current model
        Returns: dict[str, Callable[[ParseNode], None]]
        """
        from .entity import Entity
        from .key_value_pair import KeyValuePair
        from .service_health_issue import ServiceHealthIssue
        from .service_update_message import ServiceUpdateMessage

        from .entity import Entity
        from .key_value_pair import KeyValuePair
        from .service_health_issue import ServiceHealthIssue
        from .service_update_message import ServiceUpdateMessage

        fields: dict[str, Callable[[Any], None]] = {
            "details": lambda n : setattr(self, 'details', n.get_collection_of_object_values(KeyValuePair)),
            "endDateTime": lambda n : setattr(self, 'end_date_time', n.get_datetime_value()),
            "lastModifiedDateTime": lambda n : setattr(self, 'last_modified_date_time', n.get_datetime_value()),
            "startDateTime": lambda n : setattr(self, 'start_date_time', n.get_datetime_value()),
            "title": lambda n : setattr(self, 'title', 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/service_announcement_base.py