複数の異なる型の値を受け入れることができる Go チャネルを作成するにはどうすればよいですか?

<code class="go">package main

import (
    "fmt"
    "time"
)

func main() {
    ch := make(chan interface{})
    go func() {
        for {
            select {
            case p := <-ch:
                fmt.Printf("Received a %q\n", reflect.TypeOf(p).Name())
            case <-time.After(time.Second):
                fmt.Println("Empty Loop")
                return
            }
        }
    }()
    ch <- "Hello"
    time.Sleep(time.Second)
    ch <- 123
    time.Sleep(time.Second)
    ch <- struct{}{}
    time.Sleep(time.Second)
    ch <- []string{"Go", "programming"}
    time.Sleep(time.Second)
}</code>

<code class="go">package main

import (
    "fmt"
    "reflect"
    "time"
)

func main() {
    ch := make(chan interface{})
    go func() {
        for {
            select {
            case p := <-ch:
                switch p := p.(type) {
                case string:
                    fmt.Printf("Got a string %q\n", p)
                case int:
                    fmt.Printf("Got an int %d\n", p)
                case struct{}:
                    fmt.Println("Got an empty struct")
                case []string:
                    fmt.Printf("Got a slice of strings %+v\n", p)
                default:
                    fmt.Printf("Type of p is %T. Value %v\n", p, p)
                }
            case <-time.After(time.Second):
                fmt.Println("Empty Loop")
                return
            }
        }
    }()
    ch <- "Hello"
    time.Sleep(time.Second)
    ch <- 123
    time.Sleep(time.Second)
    ch <- struct{}{}
    time.Sleep(time.Second)
    ch <- []string{"Go", "programming"}
    time.Sleep(time.Second)
}</code>