def find_by_tag(self, tag) -> Dict[str, Set[Parameter]]:
        """
        Get all registered dicts that are registered for a tag

        :param tag: str - single tag
        :return: a dict of {param name: set[Parameter]} that contains all ParameterScenarioSets for
        all parameter names with a given tag
        """
        return self.tags[tag]
def find_by_tag ( self , tag ) -> Dict [ str , Set [ Parameter ] ] : return self . tags [ tag ]
Get all registered dicts that are registered for a tag

        :param tag: str - single tag
        :return: a dict of {param name: set[Parameter]} that contains all ParameterScenarioSets for
        all parameter names with a given tag