@Override
    public String toString() {
        return LoggerUtil.commonMacMessage(bluetoothGatt);
    }
A function that should call the passed {@link BluetoothGatt} and return `true` if the call has succeeded.

@param bluetoothGatt the {@link BluetoothGatt} to use
@return `true` if success, `false` otherwise
rxandroidble/src/main/java/com/polidea/rxandroidble2/internal/SingleResponseOperation.java