def dictionary_should_not_contain_key(self, dictionary, key, msg=None):
        default = "Dictionary contains key '%s'" % key
        _verify_condition(not dictionary.has_key(key), default, msg)
Fails if `key` is found from `dictionary`.
dataset/ETHPy150Open shellderp/sublime-robot-plugin/lib/robot/libraries/Collections.py/_Dictionary.dictionary_should_not_contain_key