code: def _get_renamed_diff(self, blueprint, command, column, schema):
          
          table_diff = self._get_table_diff(blueprint, schema)
  
          return self._set_renamed_columns(table_diff, command, column)
docs: Get a new column instance with the new column name.
  
          :param blueprint: The blueprint
          :type blueprint: Blueprint
  
          :param command: The command
          :type command: Fluent
  
          :param column: The column
          :type column: orator.dbal.Column
  
          :param schema: The schema
          :type schema: orator.dbal.SchemaManager
  
          :rtype: orator.dbal.TableDiff