code: def isin(self, values):
          
          return self.__constructor__(
              query_compiler=self._query_compiler.isin(values=values)
          )
docs: Fill a DataFrame with booleans for cells contained in values.
  
          Args:
              values (iterable, DataFrame, Series, or dict): The values to find.
  
          Returns:
              A new DataFrame with booleans representing whether or not a cell
              is in values.
              True: cell is contained in values.
              False: otherwise