def default(self, rule_name):
        new = self._copy()
        new.default_rule = new[rule_name]
        return new
Sign and return the policy doucument for a simple upload.
dataset/ETHPy150Open erikrose/parsimonious/parsimonious/grammar.py/Grammar.default--crossover with--dataset/ETHPy150Open buildingenergy/buildingenergy-platform/data_importer/views.py/sign_policy_document