private boolean parseDoubleStarExpression(boolean isTargetExpression) {
    if (atToken(PyTokenTypes.EXP)) {
      SyntaxTreeBuilder.Marker starExpr = myBuilder.mark();
      nextToken();
      if (!parseBitwiseORExpression(isTargetExpression)) {
        myBuilder.error(message("PARSE.expected.expression"));
        starExpr.drop();
        return false;
      }
      starExpr.done(PyElementTypes.DOUBLE_STAR_EXPRESSION);
      return true;
    }
    return parseBitwiseORExpression(isTargetExpression);
  }
private boolean parseDoubleStarExpression(boolean isTargetExpression)