@Override
  public boolean supportsNamedCharacters(RegExpNamedCharacter namedCharacter) {
    PsiLanguageInjectionHost host = InjectedLanguageManager.getInstance(namedCharacter.getProject()).getInjectionHost(namedCharacter);
    return host == null || LanguageLevel.forElement(host).isAtLeast(LanguageLevel.PYTHON38);
  }
@Override
  public boolean supportsNamedCharacters(RegExpNamedCharacter namedCharacter)