code: func NewProtocolPort(protocol string, port int32) *ProtocolPort {
  	pp := &ProtocolPort{
  		Protocol: protocol,
  		Port:     port,
  	}
  
  	if len(pp.Protocol) == 0 {
  		pp.Protocol = string(v1.ProtocolTCP)
  	}
  
  	return pp
  }
docs: // NewProtocolPort creates a ProtocolPort instance.