def containsParamSubset(self, params):
        """
        Test whether this element contains at least all `params`, or more.

        Args:
            params (dict/SpecialDict): Subset of parameters.

        Returns:
            bool: True if all `params` are contained in this element.
        """
        for key in params.keys():
            if key not in self.params:
                return False

            if params[key] != self.params[key]:
                return False

        return True