@abstractmethod
    def _validate_case(self, case):
        pass
Creates a safe string to be used as a regex group name.
dataset/ETHPy150Open dimagi/commcare-hq/corehq/form_processor/casedb_base.py/AbstractCaseDbCache._validate_case--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/dev_appserver_apiserver.py/ApiConfigManager._ToSafePathParamName