Storage::disk listing a directory

Hi

I have the following code:

		$url = \AmazonS3Helpers::getPath('agency',$agency_id,'Media');
		try {
			$exists = \Storage::disk('s3')->exists($url);
		} catch (Exception $e) {
			# An error occurs communicating with S3, for now, assume the image exists
			# $exists = true;
		}

I need to get list all the files in a folder on Amazon S3, I know the above verifies that this folder exists, how do i get a listing back? I can't seem to work out if there is a function to do this!

Kind regards in advance Carl.