Srvmgr: module{	PATH:	con "/dis/collab/srvmgr.dis";	Srvreq: adt {		sname: string;		id: string;		pick {		Acquire =>			uname: string;			reply: chan of Srvreply;		Release =>		}	}; 	Srvreply: type (		string,		# error		string,		# root path		ref Sys->FD	# styx fd	); 	init: fn(cfg: string): (string, chan of ref Srvreq);};