Spatie\Backup\Tasks\Backup\Manifest::create PHP Method

    public static function create(string $manifestPath) : Manifest
    {
        return new static($manifestPath);
    }

 protected function createBackupManifest() : Manifest
 {
     $databaseDumps = $this->dumpDatabases($this->temporaryDirectory->path('db-dumps'));
     consoleOutput()->info('Determining files to backup...');
     $manifest = Manifest::create($this->temporaryDirectory->path('manifest.txt'))->addFiles($databaseDumps)->addFiles($this->filesToBeBackedUp());
     event(new BackupManifestWasCreated($manifest));
     return $manifest;
 }