code: def _get_changed_diff(self, blueprint, schema):
          
          table = schema.list_table_details(
              self.get_table_prefix() + blueprint.get_table()
          )
  
          return Comparator().diff_table(
              table, self._get_table_with_column_changes(blueprint, table)
          )
docs: Get the table diffrence for the given changes.
  
          :param blueprint: The blueprint
          :type blueprint: Blueprint
  
          :param schema: The schema
          :type schema: orator.dbal.SchemaManager
  
          :rtype: orator.dbal.TableDiff