code: public function getType(): string
      {
          if ($resource = $this->getResource()) {
              return get_class($resource);
          }
  
          $resourceType = $this->getResourceType();
  
          if (!$type = $this->resolver->getType($resourceType)) {
              throw new RuntimeException("JSON API resource type {$resourceType} is not registered.");
          }
  
          return $type;
      }
docs: Get the domain record type for the route.
  
  @return string