JSON in Go

package main

import (
	"encoding/json"
	"fmt"
)

// TODO: add json tags so fields become "name" and "age" in JSON
type Person struct {
	Name string
	Age  int
}

func main() {
	p := Person{Name: "Alice", Age: 30}

	// TODO: marshal p to JSON and print it
	data, err := json.Marshal(nil)
	if err != nil {
		fmt.Println("Error:", err)
		return
	}
	fmt.Println(string(data))
}