83     protected $includes;  variable in PHP_Token_Stream
297         if ($this->includes === null) {
298             $this->includes = [
311                         $this->includes[$token->getType()][] = $token->getName();
317         if (isset($this->includes[$category])) {
318             $includes = $this->includes[$category];
320             $includes = array_merge(
321                 $this->includes['require_once'],
322                 $this->includes['require'],
323                 $this->includes['include_once'],
324                 $this->includes['include']
327             $includes = $this->includes;
330         return $includes;