val actual = prettyPrint {
            printMap(
                map = elementsByMarker,
                omitSingleKey = true,
                renderKey = { key, _ -> append("$key:") }
            ) { marker, byMarker ->
                val elementsByMarkerAndContext = byMarker.groupBy { it.context }
                printMap(
                    map = elementsByMarkerAndContext,

		log.Fatal("usage: encgen [--output filename]")
	}
	var b bytes.Buffer
	fmt.Fprintf(&b, "// Code generated by go run encgen.go -output %s; DO NOT EDIT.\n", *output)
	fmt.Fprint(&b, header)
	printMaps(&b, "Array")
	fmt.Fprint(&b, "\n")
	printMaps(&b, "Slice")
	for _, t := range types {
		fmt.Fprintf(&b, arrayHelper, t.lower, t.upper)
		fmt.Fprintf(&b, sliceHelper, t.lower, t.upper, t.zero, t.encoder)
	}

		log.Fatal("usage: decgen [--output filename]")
	}
	var b bytes.Buffer
	fmt.Fprintf(&b, "// Code generated by go run decgen.go -output %s; DO NOT EDIT.\n", *output)
	fmt.Fprint(&b, header)
	printMaps(&b, "Array")
	fmt.Fprint(&b, "\n")
	printMaps(&b, "Slice")
	for _, t := range types {
		fmt.Fprintf(&b, arrayHelper, t.lower, t.upper)
		fmt.Fprintf(&b, sliceHelper, t.lower, t.upper, t.decoder)
	}
	fmt.Fprintf(&b, trailer)

	{"runtime.printstring", 1},
	{"runtime.printpointer", 1},
	{"runtime.printuintptr", 1},
	{"runtime.printiface", 1},
	{"runtime.printeface", 1},
	{"runtime.printslice", 1},
	{"runtime.printnl", 1},
	{"runtime.printsp", 1},
	{"runtime.printlock", 1},
	{"runtime.printunlock", 1},
	{"runtime.concatstring2", 1},
	{"runtime.concatstring3", 1},
	{"runtime.concatstring4", 1},
	{"runtime.concatstring5", 1},
	{"runtime.concatstrings", 1},

    if (merged_output.node() == nullptr) {
      Output new_output(new_node, oidx);
      if (debugging_opts.print_outputs) {
        string cpu_device = "/job:localhost/replica:0/task:0/device:CPU:0";
        ops::Print print_op(s.WithOpName("print_", oidx)
                                .WithDevice(cpu_device)
                                .WithAssignedDevice(cpu_device),
                            new_output, {new_output},

func (r *debugLogReader) varint() int64 {
	u := r.uvarint()
	var v int64
	if u&1 == 0 {
		v = int64(u >> 1)
	} else {
		v = ^int64(u >> 1)
	}
	return v
}

func (r *debugLogReader) printVal() bool {
	typ := r.data.b[r.begin%uint64(len(r.data.b))]
	r.begin++

	switch typ {
	default:
		print("<unknown field type ", hex(typ), " pos ", r.begin-1, " end ", r.end, ">\n")
		return false

func printuint(uint64)
func printcomplex(complex128)
func printstring(string)
func printpointer(any)
func printuintptr(uintptr)
func printiface(any)
func printeface(any)
func printslice(any)
func printnl()
func printsp()
func printlock()
func printunlock()

func concatstring2(*[32]byte, string, string) string
func concatstring3(*[32]byte, string, string, string) string
func concatstring4(*[32]byte, string, string, string, string) string

	{"printstring", funcTag, 29},
	{"printpointer", funcTag, 30},
	{"printuintptr", funcTag, 31},
	{"printiface", funcTag, 30},
	{"printeface", funcTag, 30},
	{"printslice", funcTag, 30},
	{"printnl", funcTag, 9},
	{"printsp", funcTag, 9},
	{"printlock", funcTag, 9},
	{"printunlock", funcTag, 9},
	{"concatstring2", funcTag, 34},
	{"concatstring3", funcTag, 35},
	{"concatstring4", funcTag, 36},
	{"concatstring5", funcTag, 37},

			ps.startScope('(')
			ps.writeString("...")
			printOp()
			foldParenthesize(f.Arg1)
			ps.endScope(')')
		} else {
			ps.startScope('(')
			foldParenthesize(f.Arg1)
			printOp()
			ps.writeString("...")
			ps.endScope(')')
		}
	} else {
		ps.startScope('(')
		foldParenthesize(f.Arg1)
		printOp()
		ps.writeString("...")
		printOp()
		foldParenthesize(f.Arg2)
		ps.endScope(')')

		case types.TSTRING:
			cs := ""
			if ir.IsConst(n, constant.String) {
				cs = ir.StringVal(n)
			}
			switch cs {
			case " ":
				on = typecheck.LookupRuntime("printsp")
			case "\n":
				on = typecheck.LookupRuntime("printnl")
			default:
				on = typecheck.LookupRuntime("printstring")
			}
		default:
			badtype(ir.OPRINT, n.Type(), nil)
			continue
		}