Filter: module{	DEFLATEPATH: con "/dis/lib/deflate.dis";	INFLATEPATH: con "/dis/lib/inflate.dis";	SLIPPATH: con "/dis/lib/slip.dis"; 	Rq: adt {		pick {		Start =>			pid: int;		Fill or Result =>			buf: array of byte;			reply: chan of int;		Info =>			msg: string;		Finished =>			buf: array of byte;		Error =>			e: string;		}	}; 	init: fn();	start: fn(param: string): chan of ref Rq;};