code: public function getMeta(?string $property)
      {
          if (null === $property) {
              return $this->meta;
          }
  
          if (!array_key_exists($property, $this->meta)) {
              throw new OutOfRangeException('Array property does not exist.');
          }
  
          return $this->meta[$property];
      }
docs: Get meta
  
  @param string $property
  @return array
  @throws \OutOfRangeException