如何在golang中使用type.NewArray初始化数组？

Basically, I want to use the Array type struct in the types module but I'm unable to initialize it. What do you have to pass in the Type as the first argument?

package main

import (
    "fmt"
    "go/types"
)

func main() {
    var a *types.Array
    a = types.NewArray(types.Int, 2) //error here
    fmt.Println(a)
}

I'm also new in go. And for me the question doesn't look stupid. Unfortunately no one has explained how to use NewArray yet. It seems to me that golang community is not very friendly I've met more downvoting than real help for now.

Btw I took course of Go tour :) But anyway I was confused that question how to get type of an object bring you to reflect package usually (type in google something like golang get type of an object) which has nothing in common with types.Type. I spent some time to figure out how to get types.Type object, and it's not obvious I think for people who has experience in other languages.

So to use NewArray method you neeed to pass an object which implements types.Type as mkopriva pointed. I end up with

package main

import (
    "fmt"
    "go/types"
)

type NewType int

func (v NewType) String() string {
    return string(v)
}

func (v NewType) Underlying() types.Type {
    return types.Type(v)
}

func main() {
    var a *types.Array
    a = types.NewArray(NewType(0), 2)
    fmt.Println(a)
}

There is used new type with underlying int. I guess I don't understand something yet in golang since for using such simple thing I had to write such useless methods as String and Underlying, they are useless because of implementation, I don't see the reason to be forced write such code. I appriciate if golang experts explain this stuff!