public static boolean isToStringMethod(@NotNull PsiElement element) {
    if (!(element instanceof PsiMethod method)) {
      return false;
    }
    if (!"toString".equals(method.getName())) {
      return false;
    }
    if (method.getParameters().length != 0) {
      return false;
    }
    PsiType returnType = method.getReturnType();
    return returnType != null && returnType.equalsToText(CommonClassNames.JAVA_LANG_STRING);
  }
public static boolean isToStringMethod(@NotNull PsiElement element)