code: def write_cell(self, cell):
          
          self._outfile.write(cell.to_gds(self._res))
          return self
docs: Write the specified cell to the file.
  
          Parameters
          ----------
          cell : ``Cell``
              Cell to be written.
  
          Notes
          -----
          Only the specified cell is written.  Dependencies must be
          manually included.
  
          Returns
          -------
          out : ``GdsWriter``
              This object.