@Nullable
    @Override
    public Ref<PyType> getType(TypeEvalContext context, @Nullable PsiElement anchor) {
      return Ref.create(myElement instanceof PyExpression ? context.getType((PyExpression)myElement) : null);
    }
@Nullable
    @Override
    public Ref<PyType> getType(TypeEvalContext context, @Nullable PsiElement anchor)