pos := r.pos
			for {
				c := r.readByteNoBuf()
				if c == '\n' || r.err != nil || r.eof {
					break
				}
				line = append(line, c)
			}
			// Add args if line is well-formed.
			// Ignore badly-formed lines - the compiler will report them when it finds them,
			// and we can pretend they are not there to help go list succeed with what it knows.
			embs, err := parseGoEmbed(string(line), pos)
			if err == nil {

        }));
        return "[" + desc + "]";
    }

    /**
     * Creates a new rule source instance to be applied to a model element.
     *
     * @throws InvalidModelRuleDeclarationException On badly formed rule source class.
     */
    public <T> ExtractedRuleSource<T> extract(Class<T> source) throws InvalidModelRuleDeclarationException {
        try {
            return cache.get(source).newInstance(source);

// where n is the number of distinct addresses with goroutines blocked
// on them that hash to the given semaRoot.
// See golang.org/issue/17953 for a program that worked badly
// before we introduced the second level of list, and
// BenchmarkSemTable/OneAddrCollision/* for a benchmark that exercises this.
type semaRoot struct {
	lock  mutex

	BLKSECTSET                       = 0x1266
	BLKSSZGET                        = 0x1268
	BLKZEROOUT                       = 0x127f
	BOTHER                           = 0x1000
	BS1                              = 0x2000
	BSDLY                            = 0x2000
	CBAUD                            = 0x100f
	CBAUDEX                          = 0x1000
	CIBAUD                           = 0x100f0000
	CLOCAL                           = 0x800

	BLKSECTSET                       = 0x1266
	BLKSSZGET                        = 0x1268
	BLKZEROOUT                       = 0x127f
	BOTHER                           = 0x1000
	BS1                              = 0x2000
	BSDLY                            = 0x2000
	CBAUD                            = 0x100f
	CBAUDEX                          = 0x1000
	CIBAUD                           = 0x100f0000
	CLOCAL                           = 0x800

	BLKSECTSET                       = 0x1266
	BLKSSZGET                        = 0x1268
	BLKZEROOUT                       = 0x127f
	BOTHER                           = 0x1000
	BS1                              = 0x2000
	BSDLY                            = 0x2000
	CBAUD                            = 0x100f
	CBAUDEX                          = 0x1000
	CIBAUD                           = 0x100f0000
	CLOCAL                           = 0x800

Then, you try with the old programmer's friend, editor autocompletion.

You type the first parameter of the function, `first_name`, then a dot (`.`) and then hit `Ctrl+Space` to trigger the completion.

But, sadly, you get nothing useful:

<img src="/img/python-types/image01.png">

### Add types

Let's modify a single line from the previous version.

We will change exactly this fragment, the parameters of the function, from:

	output := runTestProg(t, "testprog", "BadTraceback")
	for _, want := range []string{
		"unexpected return pc",
		"called from 0xbad",
		"00000bad",    // Smashed LR in hex dump
		"<main.badLR", // Symbolization in hex dump (badLR1 or badLR2)
	} {
		if !strings.Contains(output, want) {
			t.Errorf("output does not contain %q:\n%s", want, output)
		}
	}
}

func TestTimePprof(t *testing.T) {