I implemented a file download function using expo-file-system, but the downloaded file could not be found.

Hi, I made a file download function, but I don’t know where it is stored and whether it is downloaded properly.

I missing something?

const downloadFile = async () => {
  if (Platform.OS === 'android') {
    const granted = await PermissionsAndroid.request(
      PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE,
      {
        title: 'Storage Permission',
        message: 'App needs access to your storage to download the file.',
        buttonNeutral: 'Ask Me Later',
        buttonNegative: 'Cancel',
        buttonPositive: 'OK',
      },
    );
    console.log(granted);
    if (granted !== PermissionsAndroid.RESULTS.GRANTED) {
      console.log('Permission denied');
      return;
    }else{
      console.log('Permission ok');
        // 외부 저장소의 Downloads 폴더 경로
        const downloadsDir = FileSystem.documentDirectory;
        console.log(downloadsDir);

        // 파일 이름
        const filename = 'myfile.txt';

        // 파일 경로
        const fileUri = `${downloadsDir}${filename}`;

        // 파일 생성 및 내용 쓰기
        await FileSystem.writeAsStringAsync(fileUri, 'This is the contents of the file.');

        // 다운로드 URL
        const url = 'https://example.com/myfile.txt';

        // 다운로드 옵션
        const options = {};

        // 다운로드 객체 생성
        const downloadObject = FileSystem.createDownloadResumable(url, fileUri, options);

        // 다운로드 시작
        try {
          const { uri } = await downloadObject.downloadAsync();
          console.log('File downloaded to:', uri);
        } catch (error) {
          console.log('Error downloading file:', error);
        }
      }
  }

  
}