package main

import "fmt2"

func get_input() interface{} {
	return map[string]interface{}{
		"left":  2,
		"right": 3,
	}
}

func main() {
	m := get_input()
    fmt2.Println(m)   
	data, ok := m.(map[string]interface{})
    assert(ok)
	fmt2.Println(ok, data)
}