def patch(self, patch):
        """Patch record metadata.

        :params patch: Dictionary of record metadata.
        :returns: A new :class:`Record` instance.
        """
        data = apply_patch(dict(self), patch)
        return self.__class__(data, model=self.model)
Patch record metadata.

        :params patch: Dictionary of record metadata.
        :returns: A new :class:`Record` instance.