用gowsdl进行SOAP调用

I am using gowsdl to consume a SOAP request in Go. I got WSDL and generated the code using that. In the auto-generated code, it generated stub and some code snippets are mentioned below.

1. I have to make a SOAP call and have to pass GetAllPersons struct as an input to the service. Please help me how do we do that? I have the request xml but dont know how to update that in GetAllPersons struct?

   persons, err := service.GetAllPersons(request)
   
   type GetAllPersons struct {
       XMLName xml.Name `xml:"http://service.jaxws.journaldev.com getAllPersons"`
   }
   

2. And as per Go specification, a variable is declared using the sybtax VariableName Type. What is the 3rd value xml:"http://service.jaxws.journaldev.com getAllPersons" in above struct?

Below is the code that I figured out to get things done with the code generated by gowsdl.

main(){
    basicauth := personService.BasicAuth{"",""}
    service := personService.NewPersonServiceImpl("", false, &basicauth)

    persons, err := service.GetAllPersons(&personService.GetAllPersons{})

    if err != nil {
        panic(err)
    }
    fmt.Println(persons)
    fmt.Printf("Alive?: %t
", persons.GetAllPersonsReturn[0].Name)
    fmt.Printf("Alive?: %t
", persons.GetAllPersonsReturn[1].Name)
    fmt.Printf("Alive?: %t
", persons.GetAllPersonsReturn[0].Id)
    fmt.Printf("Alive?: %t
", persons.GetAllPersonsReturn[1].Id)
    fmt.Printf("Alive?: %t
", persons.GetAllPersonsReturn[0].Age)
    fmt.Printf("Alive?: %t
", persons.GetAllPersonsReturn[1].Age)
    fmt.Printf(persons.GetAllPersonsReturn[0].Name)

    request := &personService.AddPerson{P: &personService.Person{Age: 24, Name: "Govinda", Id: 55555555}}
    trial, err := service.AddPerson(request)
    if err != nil {
        panic(err)
    }
}

For the 2nd question, thanks to Volker for mentioning the answer in comments. These strings after the type are called tags (see golang.org/ref/spec#Struct_types) and are used typically during (un)marshalling from serialisation formats like xml