How can i use a function as value in a struct ?

type data struct {     
    name     string //struct field
    
}

func hostnameScan(){  // function that we want to use as value in a struct

	hostname, error := os.Hostname()  //Hostname is a string
	if error != nil {
		panic(error)
	}
	fmt.Println("hostname returned from Environment : ", hostname)
	fmt.Println("error : ", error)
}

func main() {  // How can i still use hostname
p1 := data{  
    name:  hostnameScan()
}

 syntax error: unexpected newline, expecting comma or
package main

import (
	"fmt"
	"os"
)

type data struct {
	name string //struct field
}

func hostnameScan() string { // function that we want to use as value in a struct

	hostname, error := os.Hostname() //Hostname is a string
	if error != nil {
		panic(error)
	}
	return hostname
}

func main() { // How can i still use hostname
	p1 := data{
		name: hostnameScan(),
	}
	fmt.Printf("%#v\n", p1)
}