parameters: (self, direction, limit=None)
return_statement: return self._get_cythonized_result('group_fillna_indexer',
                                             self.grouper, needs_mask=True,
                                             cython_dtype=np.int64,
                                             result_is_index=True,
                                             direction=direction, limit=limit)
docstring: Shared function for `pad` and `backfill` to call Cython method.
  
          Parameters
          ----------
          direction : {'ffill', 'bfill'}
              Direction passed to underlying Cython function. `bfill` will cause
              values to be filled backwards. `ffill` and any other values will
              default to a forward fill
          limit : int, default None
              Maximum number of consecutive values to fill. If `None`, this
              method will convert to -1 prior to passing to Cython
  
          Returns
          -------
          `Series` or `DataFrame` with filled values
  
          See Also
          --------
          pad
          backfill
docstring_summary: Shared function for `pad` and `backfill` to call Cython method.
docstring_tokens: Shared function for pad and backfill to call Cython method .
function: def _fill(self, direction, limit=None):
          """
          Shared function for `pad` and `backfill` to call Cython method.
  
          Parameters
          ----------
          direction : {'ffill', 'bfill'}
              Direction passed to underlying Cython function. `bfill` will cause
              values to be filled backwards. `ffill` and any other values will
              default to a forward fill
          limit : int, default None
              Maximum number of consecutive values to fill. If `None`, this
              method will convert to -1 prior to passing to Cython
  
          Returns
          -------
          `Series` or `DataFrame` with filled values
  
          See Also
          --------
          pad
          backfill
          """
          # Need int value for Cython
          if limit is None:
              limit = -1
  
          return self._get_cythonized_result('group_fillna_indexer',
                                             self.grouper, needs_mask=True,
                                             cython_dtype=np.int64,
                                             result_is_index=True,
                                             direction=direction, limit=limit)
function_tokens: def _fill ( self , direction , limit = None ) : # Need int value for Cython if limit is None : limit = - 1 return self . _get_cythonized_result ( 'group_fillna_indexer' , self . grouper , needs_mask = True , cython_dtype = np . int64 , result_is_index = True , direction = direction , limit = limit )