private static @NotNull List<PyElementType> getOperators(@NotNull PyBinaryExpression expression) {
    List<PyElementType> res = new ArrayList<>();
    if (expression.getLeftExpression() instanceof PyBinaryExpression leftBinaryOperand) {
      res.addAll(getOperators(leftBinaryOperand));
    }
    if (expression.getRightExpression() instanceof PyBinaryExpression rightBinaryOperand) {
      res.addAll(getOperators(rightBinaryOperand));
    }
    res.add(expression.getOperator());
    return res;
  }
private static @NotNull List<PyElementType> getOperators(@NotNull PyBinaryExpression expression)