def METHOD_NAME(self, config_dict):
    """Allow for updates to relation."""
    if self.model.unit.is_leader():
        self.config_dict = config_dict
        if self._config_dict_errors(update_only=True):
            return
        relation = self.model.get_relation("ingress")
        if relation:
            for key in self.config_dict:
                relation.data[self.model.app][key] = str(self.config_dict[key])