Specifies which albums should be listed, in terms of their visibility ( visibility).
Set the property to <code class="literal">0</code> to list all albums, regardless of their visibility. Otherwise, use values from PicasaWebVisibility.
For more information, see the <ulink type="http" url="http://code.google.com/apis/picasaweb/reference.html#Visibility"> online documentation</ulink>.