code: func writeDebugInfo(w io.Writer) {
  	fmt.Fprintf(w, "Runtime stats\n")
  	runtimeStats(w)
  
  	fmt.Fprintf(w, "Memory stats\n")
  	memStats(w)
  
  	fmt.Fprintf(w, "Goroutines\n")
  	goroutineDump(w)
  }
docs: // writeDebugInfo writes debugging information
  // about this process