code: private function getApnsJsonInner(?string $text): array
      {
          $apns = [
              'aps' => [],
          ];
  
          if (null !== $this->localizedKey) {
              $apns['aps']['alert'] = [
                  'loc-key' => $this->localizedKey,
              ];
              if ($this->localizedArguments) {
                  $apns['aps']['alert']['loc-args'] = $this->localizedArguments;
              }
          } elseif (null !== $text) {
              $apns['aps']['alert'] = $text;
          }
  
          if ($this->isContentAvailable()) {
              $apns['aps']['content-available'] = 1;
          }
  
          if (null !== $this->badge) {
              $apns['aps']['badge'] = $this->badge;
          }
  
          if (null !== $this->sound) {
              $apns['aps']['sound'] = $this->sound;
          }
  
          $merged = $this->arrayMergeDeep($apns, $this->custom, $this->apnsData ? $this->apnsData : []);
  
          // Force aps to be an object, because it shouldnt get encoded as [] but as {}
          if (!\count($merged['aps'])) {
              $merged['aps'] = new \stdClass();
          }
  
          return $merged;
      }
docs: Get the correct apple push notification server data.