701     def set_param(self, param, value, header='Content-Type', requote=True,  argument
728                 ctype = _formatparam(param, value, requote)
731                     [ctype, _formatparam(param, value, requote)])
735                                                         unquote=requote):
738                     append_param = _formatparam(param, value, requote)
740                     append_param = _formatparam(old_param, old_value, requote)
752     def del_param(self, param, header='content-type', requote=True):  argument
763         for p, v in self.get_params(header=header, unquote=requote):
766                     new_ctype = _formatparam(p, v, requote)
769                                                 _formatparam(p, v, requote)])
774     def set_type(self, type, header='Content-Type', requote=True):  argument
799         params = self.get_params(header=header, unquote=requote)
804             self.set_param(p, v, header, requote)