code: def to_api_data(self, restrict_keys=None):
          
          cc = self._cc  # alias
          data = {
              cc('column_width'): self._column_width,
              cc('horizontal_alignment'): self._horizontal_alignment,
              cc('row_height'): self._row_height,
              cc('vertical_alignment'): self._vertical_alignment,
              cc('wrap_text'): self._wrap_text,
          }
  
          if restrict_keys:
              for key in list(data.keys()):
                  if key not in restrict_keys:
                      del data[key]
          return data
docs: Returns a dict to communicate with the server
  
          :param restrict_keys: a set of keys to restrict the returned data to
          :rtype: dict