void add_bank_selector(QTreeWidgetItem *item, const MIDIMappingProto &mapping_proto, int bank_field_number);
enum class ControlType { CONTROLLER, BUTTON };
void add_controls(const std::string &heading, ControlType control_type,
void add_bank_selector(QTreeWidgetItem *item, const MIDIMappingProto &mapping_proto, int bank_field_number);
enum class ControlType { CONTROLLER, BUTTON };
void add_controls(const std::string &heading, ControlType control_type,