package main

import "fmt"

type test struct {
    value int
}

//type Test interface {
//  changeValue(newValue int)
//  getValue() int
//}

func (tst *test) changeValue(newValue int) {
    tst.value = newValue
}

func (tst *test) getValue() int {
    return tst.value
}

func main() {
    var lol test
    lol = test{value:0}
    fmt.Println(lol.getValue())
    lol.changeValue(1)
    fmt.Println(lol.getValue())
    change(lol)
    fmt.Println(lol.getValue())
}

func change(tst test){
    tst.changeValue(2)
}