code: func (b *Bundler) ClearCache() (err error) {
  	// Remove cache folder
  	astilog.Debugf("Removing %s", b.pathCache)
  	if err = os.RemoveAll(b.pathCache); err != nil {
  		err = errors.Wrapf(err, "removing %s failed", b.pathCache)
  		return
  	}
  	return
  }
docs: // ClearCache clears the bundler cache