code: def add_all(self, statements, parameters):
          
          for statement, value in zip(statements, parameters):
              self.add(statement, value)
docs: Adds a sequence of :class:`.Statement` objects and a matching sequence
          of parameters to the batch. Statement and parameter sequences must be of equal length or
          one will be truncated. :const:`None` can be used in the parameters position where are needed.