@classmethod
    def _create_key(cls, consumer_secret, token_secret=''):
        
        return _join_by_ampersand(consumer_secret, token_secret or '')
Group milestones into "open with due date", "open with no due date",
dataset/ETHPy150Open peterhudec/authomatic/authomatic/providers/oauth1.py/HMACSHA1SignatureGenerator._create_key--crossover with--dataset/ETHPy150Open edgewall/trac/trac/ticket/model.py/group_milestones