import minecraft.networking.packets
from protocol import packets

def get_packets(old_get_packets):
    def wrapper(func, context):
        print('Monkey-patch worked.')
        mc_packets = func(context)

        # add any custom packets here
        mc_packets.add(packets.ChunkDataPacket)
        mc_packets.add(packets.BlockChangePacket)
        mc_packets.add(packets.MultiBlockChangePacket)

        return mc_packets
    return lambda x: wrapper(old_get_packets, x)

minecraft.networking.packets.clientbound.play.get_packets = get_packets(minecraft.networking.packets.clientbound.play.get_packets)