connect method
Connects to the device at address using the given uuid.
If secure is true (default), uses authenticated/encrypted RFCOMM.
Returns a BtcConnection for reading/writing data.
Implementation
Future<BtcConnection> connect({
required String address,
String uuid = BtcUuid.spp,
bool secure = true,
}) {
throw UnimplementedError('connect() has not been implemented.');
}