code: func (b *Bundle) CompileToTofu() (*soyhtml.Tofu, error) {
  	var registry, err = b.Compile()
  	// TODO: Verify all used funcs exist and have the right # args.
  	return soyhtml.NewTofu(registry), err
  }
docs: // CompileToTofu returns a soyhtml.Tofu object that allows you to render soy
  // templates to HTML.