sqlite object-level interface

I just discovered (via the RTFS method) that there is an object-level interface to the sqlite functionality, $obj = new SQLiteDatabase(filename); It appears that there are SQLiteQuery and a few other object types as well, although I didn't pursue those. In searching the documentation on the web site, the only mention of this object interface is in a single "user-supplied" comment on the main PHP sqlite page, simply stating that the object name was converted to use studly caps. Is this an interface method that is supposed to be public? If so, it appears that the documentation for it was never written or never made it to the web site. Cheers, Derrell