[gme-users] constraints

[=?gb2312?B?yubV17jb?=]

Hi:

In GME , I found the following expression:

not directs->exists( d : gme::FCO | d.allAscendants(-1 ).intersection( ids ).notEmpty() )

but gme::FCO doesn't have the method "allAscendants()" in GME help document, why?

thanks.
	

		david.