type MyType struct {
    Neco int
    Dalsi int
}

func (m *MyType) Add() {
    return m.Neco + m.Dalsi
}

my := &MyType {
    Neco = 1
    Dalsi = 2
}

fmt.Printf("%v+%v = %v", my.Neco, my.Dalso, my.Add())