code: def isubset(self, *keys):
          # type: (*Hashable) -> ww.g
          
          return ww.g((key, self[key]) for key in keys)
docs: Return key, self[key] as generator for key in keys.
  
          Raise KeyError if a key does not exist
  
          Args:
              keys: Iterable containing keys
  
          Example:
  
              >>> from ww import d
              >>> list(d({1: 1, 2: 2, 3: 3}).isubset(1, 3))
              [(1, 1), (3, 3)]