def from_json_dict(cls,
                       json_dict  # type: Dict[str, Any]
    ):
        # type: (...) -> DateSpec
        """ Make a DateSpec object from a dictionary containing its
            properties.

            :param dict json_dict: This dictionary must contain a
                `'format'` key. In addition, it must contain a
                `'hashing'` key, whose contents are passed to
                :class:`FieldHashingProperties`.

            :param json_dict: The properties dictionary.
        """
        # noinspection PyCompatibility
        result = cast(DateSpec,  # For Mypy.
                      super().from_json_dict(json_dict))

        format_ = json_dict['format']
        result.format = format_['format']

        return result
Make a DateSpec object from a dictionary containing its
            properties.

            :param dict json_dict: This dictionary must contain a
                `'format'` key. In addition, it must contain a
                `'hashing'` key, whose contents are passed to
                :class:`FieldHashingProperties`.

            :param json_dict: The properties dictionary.