def contains_key(self, *keys):
        if not isinstance(self.val, collections.Iterable) or \
                not hasattr(self.val, 'keys') or \
                not callable(getattr(self.val, 'keys')):
            raise TypeError('val is not dict-like')
        return self.contains(*keys)
Asserts the val is a dict and contains the given key or keys.  Alias for contains().
dataset/ETHPy150Open ActivisionGameScience/assertpy/assertpy/assertpy.py/AssertionBuilder.contains_key