code: def set_last_row_idx(self, last_row_idx):
  		'''
  		Parameters
  		----------
  		param last_row_idx : int
  			number of rows
  		'''
  		assert last_row_idx >= self._max_row
  		self._max_row = last_row_idx
  		return self set_last_row_idx(self, last_row_idx):
  		'''
  		Parameters
  		----------
  		param last_row_idx : int
  			number of rows
  		'''
  		assert last_row_idx >= self._max_row
  		self._max_row = last_row_idx
  		return self
docs: Parameters
  		----------
  		param last_row_idx : int
  			number of rows