SYNOPSIS
        int lwobjectp(mixed arg)

DESCRIPTION
        Return 1 if arg is a lightweight object.

SEE ALSO
        bytesp(E), clonep(E), closurep(E), floatp(E), intp(E), mappingp(E),
        objectp(E), pointerp(E), referencep(E), stringp(E), structp(E),
        symbolp(E)