code: def keys_in(items, *args):
      
  
      found = dict((key, False) for key in items)
      for d in args:
          for item in items:
              if not found[item] and item in d:
                  found[item] = True
      return all(found.values())
docs: Use this utility function to ensure multiple keys are in one or more
      dicts.  Returns `True` if all keys are present in at least one of the
      given dicts, otherwise returns `False`.
  
      :Parameters:
          - `items`: Iterable of required keys
          - Variable number of subsequent arguments, each one being a dict to check.