private function addInternalAnnotation(DocBlock $docBlock, Tokens $tokens, $docBlockIndex)
    {
        $lines = $docBlock->getLines();
        $originalIndent = $this->detectIndent($tokens, $docBlockIndex);
        $lineEnd = $this->whitespacesConfig->getLineEnding();
        array_splice($lines, -1, 0, $originalIndent.' *'.$lineEnd.$originalIndent.' * @internal'.$lineEnd);

        return $lines;
    }
private function addInternalAnnotation(DocBlock $docBlock, Tokens $tokens, $docBlockIndex)
    {
        $lines = $docBlock->getLines();
        $originalIndent = $this->detectIndent($tokens, $docBlockIndex);
        $lineEnd = $this->whitespacesConfig->getLineEnding();
        array_splice($lines, -1, 0, $originalIndent.' *'.$lineEnd.$originalIndent.' * @internal'.$lineEnd);

        return $lines;
    }
@param DocBlock $docBlock
@param Tokens   $tokens
@param int      $docBlockIndex

@return Line[]