typed nil #1

package main

import (
    "fmt"
)

type Man struct {
    Name string
}

type Woman struct {
    Name string
}

func main() {
    types := map[interface{}]string{}

    var (
        man   *Man
        woman *Woman
    )

    types[man] = "man"
    types[woman] = "woman"

    fmt.Println(types)
}