code: public function sendToDevice($deviceId, $openId, $content)
      {
          $params = [
              'device_type' => $this->deviceType,
              'device_id' => $deviceId,
              'open_id' => $openId,
              'content' => base64_encode($content),
          ];
  
          return $this->parseJSON('json', [self::API_TRANS_MSG, $params]);
      }
docs: Send message to device.
  
  @param int $sceneValue
  
  @return \EasyWeChat\Support\Collection