@Nullable
  public static PyTupleType createHomogeneous(@NotNull PsiElement anchor, @Nullable PyType elementType) {
    final PyClass tuple = PyBuiltinCache.getInstance(anchor).getClass(PyNames.TUPLE);
    if (tuple != null) {
      return new PyTupleType(tuple, Collections.singletonList(elementType), true);
    }
    return null;
  }
@Nullable
  public static PyTupleType createHomogeneous(@NotNull PsiElement anchor, @Nullable PyType elementType)