const std::shared_ptr<sigrok::ChannelGroup> &group,
const std::unordered_map<std::shared_ptr<sigrok::Channel>,
std::shared_ptr<Signal> > &signal_map);
const std::shared_ptr<sigrok::ChannelGroup> &group,
const std::unordered_map<std::shared_ptr<sigrok::Channel>,
std::shared_ptr<Signal> > &signal_map);