private function findNonBlankLine(DocBlock $doc, $after)
    {
        foreach ($doc->getLines() as $index => $line) {
            if ($index <= $after) {
                continue;
            }

            if ($line->containsATag() || $line->containsUsefulContent() || $line->isTheEnd()) {
                return $index;
            }
        }
    }
private function findNonBlankLine(DocBlock $doc, $after)
    {
        foreach ($doc->getLines() as $index => $line) {
            if ($index <= $after) {
                continue;
            }

            if ($line->containsATag() || $line->containsUsefulContent() || $line->isTheEnd()) {
                return $index;
            }
        }
    }
@param DocBlock $doc
@param int      $after

@return null|int