package main

import (
    "log"
)

type Passthrough func(string)string

func render(text string) string {
  return text
}

func blender(text string)string { return "<b>" + render(text) + "</b>" }

func main() {
  var container = map[string]interface{} {
    "name": "Willy",
    "wrapped": func() Passthrough { return blender }
  }

  x := func() Passthrough { return blender }
  y := x()
  z := y("Willy")

  log.Printf("text\n")
  log.Printf("%s", container["name"])
  log.Printf("%s", y("Willy"))
  log.Printf("%s", z)

}