func NewGetBlockHeaderRespHandler(pm p2pcommon.PeerManager, peer p2pcommon.RemotePeer, logger *log.Logger, actor p2pcommon.ActorService) *getBlockHeadersResponseHandler {
    bh := &getBlockHeadersResponseHandler{BaseMsgHandler{protocol: p2pcommon.GetBlockHeadersResponse, pm: pm, peer: peer, actor: actor, logger: logger}}
    return bh
}