CLASS ku net/minecraft/network/packet/server/SPacketPlayerHeldItemUpdate FIELD a slot I METHOD (I)V ARG 0 slot METHOD a getSlot ()I METHOD a readPacket (Lgb;)V ARG 0 buf METHOD a applyPacket (Lge;)V ARG 0 handler METHOD a applyPacket (Ljx;)V ARG 0 handler METHOD b writePacket (Lgb;)V ARG 0 buf