The trace text format produced and consumed by this package is a line-oriented
format.

The first line in each text trace is the header line.

	Trace Go1.XX

Following that is a series of event lines. Each event begins with an
event name, followed by zero or more named unsigned integer arguments.
Names are separated from their integer values by an '=' sign. Names can
consist of any UTF-8 character except '='.

For example:

void CopyAttributes(Operation *from, Operation *to, Predicate P) {
  for (const NamedAttribute &attr : from->getAttrs())
    if (P(attr)) to->setAttr(attr.getName(), attr.getValue());
}

// Copies attributes whose name begins with an _ from `from` to `to`.
inline void CopyUnderscoredAttributes(Operation *from, Operation *to) {
  CopyAttributes(from, to, [](const NamedAttribute &attr) {
    return attr.getName().strref().front() == '_';
  });

	case len(path) >= 2 && IsPathSeparator(path[1]):
		// Path starts with \\, and is a UNC path.
		return uncLen(path, 2)
	}
	return 0
}

// pathHasPrefixFold tests whether the path s begins with prefix,
// ignoring case and treating all path separators as equivalent.
// If s is longer than prefix, then s[len(prefix)] must be a path separator.
func pathHasPrefixFold(s, prefix string) bool {

      builder.getStrArrayAttr({index_path}));

  new_arg_attrs.emplace_back(index_path_attr);
  return new_arg_attrs;
}

// Strips the "assets/" directory prefix, if `filename` begins with it. The
// SavedModel loader attaches the prefix for you during loading.
StringRef MaybeStripAssetDirectoryPrefix(const StringRef filename) {
  if (filename.find("assets/") == 0) {
    return filename.drop_front(7);

	// (We'll add another blank line after our comment block.)
	// When we start dropping // +build comments, we can skip over /* */ comments too.
	// Note that we are processing tabwriter input, so every comment
	// begins and ends with a tabwriter.Escape byte.
	// And some newlines have turned into \f bytes.
	insert := 0
	for pos := 0; ; {
		// Skip leading space at beginning of line.
		blank := true

//	fail   - the test or benchmark failed
//	output - the test printed output
//	skip   - the test was skipped or the package contained no tests
//
// Every JSON stream begins with a "start" event.
//
// The Package field, if present, specifies the package being tested.
// When the go command runs parallel tests in -json mode, events from
// different tests are interlaced; the Package field allows readers to
// separate them.
//

		}

		// Identify and sort runs of specs on successive lines.
		i := 0
		specs := d.Specs[:0]
		for j, s := range d.Specs {
			if j > i && lineAt(fset, s.Pos()) > 1+lineAt(fset, d.Specs[j-1].End()) {
				// j begins a new run. End this one.
				specs = append(specs, sortSpecs(fset, f, d.Specs[i:j])...)
				i = j
			}
		}
		specs = append(specs, sortSpecs(fset, f, d.Specs[i:])...)
		d.Specs = specs

			t.Errorf("missing error for %q", f)
		}
	}

	// All "good" compiler flags should not trigger external linking,
	// except for anything that begins with "-flto".
	for _, f := range goodCompilerFlags {
		foundLTO := false
		for _, s := range f {
			if strings.Contains(s, "-flto") {
				foundLTO = true
			}
		}

== Step 3. Understanding Dependencies Between Tasks
Many times, a task requires another task to run first.
If task B uses the output of task A, then task A must complete before task B begins.

- A task may declare its dependencies explicitly.
- A task may depend on other tasks implicitly.

Here is an example of explicit task dependency:
[.multi-language-sample]
=====
[source, kotlin]
----

// no PEM data is found, p is nil and the whole of the input is returned in
// rest.
func Decode(data []byte) (p *Block, rest []byte) {
	// pemStart begins with a newline. However, at the very beginning of
	// the byte array, we'll accept the start string without it.
	rest = data
	for {
		if bytes.HasPrefix(rest, pemStart[1:]) {
			rest = rest[len(pemStart)-1:]
		} else if _, after, ok := bytes.Cut(rest, pemStart); ok {