Platformsh\Cli\Command\CommandBase::isHiddenInList PHP Method

    public function isHiddenInList()
    {
        return $this->hiddenInList;
    }

 public function isHiddenInList()
 {
     // Hide this command in the list if the project is not Drupal.
     $projectRoot = $this->getProjectRoot();
     if ($projectRoot && !Drupal::isDrupal($projectRoot)) {
         return true;
     }
     return parent::isHiddenInList();
 }