SimilarText\Finder::first PHP Method

    public function first()
    {
        $this->sortHaystack();
        reset($this->sorted_haystack);
        return key($this->sorted_haystack);
    }

 /**
  * @param InputInterface $input
  * @param Container $services
  * @return ITask
  */
 public function create(InputInterface $input, Container $services)
 {
     if (!$input->getArgument('action')) {
         throw new \InvalidArgumentException(sprintf('An action param is required: %s', json_encode(AliasCommand::$actions)));
     }
     if ($input->getArgument('action') === 'list') {
         return new Listing($services);
     }
     if ($input->getArgument('action') === 'save') {
         if (!$input->getArgument('name')) {
             throw new \InvalidArgumentException('name param is mandatory for this action');
         }
         if (!$input->getArgument('bootstrap')) {
             throw new \InvalidArgumentException('bootstrap param is mandatory for this action');
         }
         return new Saving($services);
     }
     if ($input->getArgument('action') === 'rm' || $input->getArgument('action') === 'remove') {
         if (!$input->getArgument('name')) {
             throw new \InvalidArgumentException('name param is mandatory for this action');
         }
         return new Removing($services);
     }
     $textFinder = new Finder($input->getArgument('action'), AliasCommand::$actions);
     throw new \InvalidArgumentException(sprintf('Action "%s" not supported. Did you mean "%s"?', $input->getArgument('action'), $textFinder->first()));
 }