Asynchronously closes the file enumerator.
If cancellable is not null, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error gio.types.IOErrorEnum.Cancelled will be returned in gio.file_enumerator.FileEnumerator.closeFinish.
the [I/O priority][io-priority] of the request
optional #GCancellable object, null to ignore.
a #GAsyncReadyCallback to call when the request is satisfied
Asynchronously closes the file enumerator.
If cancellable is not null, then the operation can be cancelled by triggering the cancellable object from another thread. If the operation was cancelled, the error gio.types.IOErrorEnum.Cancelled will be returned in gio.file_enumerator.FileEnumerator.closeFinish.