m>, the elements in the stream are <em>logical</em> view ids.
 </p>

 <p>
 The <code>maxDepth</code> parameter is the maximum depth of directory levels to visit <em>beyond the initial path</em>,
 which is always visited. The value is relative to the root (<code>/</code>), not to the given initial path. E.g. given
 <code>maxDepth</code> = <code>3</code> and initial path <code>/foo/</code>, visiting will proceed up to <code>/foo/bar/</code>, where
 <code>/</code> counts as depth <code>1</code>, <code>/foo/</c