code: public function addPortConfiguration($haipName, $name, $sourcePort, $targetPort, $mode, $endpointSslMode)
      {
          $this->call(
              self::SERVICE,
              'addPortConfiguration',
              [$haipName, $name, $sourcePort, $targetPort, $mode, $endpointSslMode]
          );
      }
docs: Add port configuration to the HA-IP.
  
  @param string $haipName        The HA-IP name
  @param string $name            The name describing the port configuration
  @param int    $sourcePort      The port that is addressed on the HA-IP
  @param int    $targetPort      The port that is addressed on the VPS
  @param string $mode            ('tcp', 'http', 'https', 'proxy')
  @param string $endpointSslMode ('off, 'on' strict')
  
  @throws \SoapFault
  
  @return mixed