PRIMARY_SERVICE, GAP_SERVICE
CHARACTERISTIC, GAP_DEVICE_NAME, READ, "HID Keyboard"

// add Battery Service
#import <battery_service.gatt>

// add Device ID Service
#import <device_information_service.gatt>

// add HID Service
#import <hids.gatt>

PRIMARY_SERVICE, GATT_SERVICE
CHARACTERISTIC, GATT_SERVICE_CHANGED, READ,