protected PyInjectionUtil.InjectionResult registerInjection(@NotNull MultiHostRegistrar registrar, @NotNull PsiElement context) {
    final Language language = getInjectedLanguage(context);
    if (language != null) {
      final PsiElement element = PyInjectionUtil.getLargestStringLiteral(context);
      if (element != null) {
        return PyInjectionUtil.registerStringLiteralInjection(element, registrar, language);
      }
    }
    return PyInjectionUtil.InjectionResult.EMPTY;
  }
protected PyInjectionUtil.InjectionResult registerInjection(@NotNull MultiHostRegistrar registrar, @NotNull PsiElement context)