CLASS bd
	CLASS bd$a
		FIELD a amplifier Lbc$d;
		FIELD b duration Lbc$d;
		FIELD c ambient Ljava/lang/Boolean;
		FIELD d visible Ljava/lang/Boolean;
	FIELD a EMPTY Lbd;
	METHOD a create ()Lbd;
	METHOD a matches (Lafv;)Z
	METHOD a matches (Lage;)Z
	METHOD a matches (Ljava/util/Map;)Z