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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def set_ddns_config(self, isenable, hostname, ddnsserver,
                                        user, password, callback=None):
        '''
        Set DDNS config.
        '''
        params = {'isEnable': isenable,
                  'hostName': hostname,
                  'ddnsServer': ddnsserver,
                  'user': user,
                  'password': password,
                 }
        return self.execute_command('setDDNSConfig', params, callback=callback)