def dictionary_should_contain_key(self, dictionary, key, msg=None):
        default = "Dictionary does not contain key '%s'" % key
        _verify_condition(dictionary.has_key(key), default, msg)
Pick the protocol classes to use for reading and writing
dataset/ETHPy150Open shellderp/sublime-robot-plugin/lib/robot/libraries/Collections.py/_Dictionary.dictionary_should_contain_key--crossover with--dataset/ETHPy150Open Yelp/mrjob/mrjob/job.py/MRJob._wrap_protocols