code: def _set_renamed_columns(self, table_diff, command, column):
          
          new_column = Column(command.to, column.get_type(), column.to_dict())
  
          table_diff.renamed_columns = {command.from_: new_column}
  
          return table_diff
docs: Set the renamed columns on the table diff.
  
          :rtype: orator.dbal.TableDiff