@Override
  public void visitPySubscriptionExpression(@NotNull PySubscriptionExpression node) {
    myBuilder.startNode(node);
    node.getOperand().accept(this);
    final PyExpression expression = node.getIndexExpression();
    if (expression != null) {
      expression.accept(this);
    }
  }
@Override
  public void visitPySubscriptionExpression(@NotNull PySubscriptionExpression node)