drush_plugin__composer_check/ComposerCheck/YamlReporter.php

<?php

namespace Fgm\ComposerCheck;


use Symfony\Component\Yaml\Yaml;

class YamlReporter extends ReporterBase {
  public function report(MergeBox $mergeBox) {
    echo Yaml::dump($mergeBox->getRows(), 3);

  }
}