private static void addInArguments(@NotNull final StringBuilder stringBuilder, @NotNull final PyBinaryExpression binaryExpression) {
    stringBuilder.append(binaryExpression.getLeftExpression().getText());
    stringBuilder.append(", ");
    final PyExpression rightExpression = binaryExpression.getRightExpression();
    if (rightExpression != null)
      stringBuilder.append(rightExpression.getText());
  }
private static void addInArguments(@NotNull final StringBuilder stringBuilder, @NotNull final PyBinaryExpression binaryExpression)