Returns an IOBluetoothSDPUUID object matching the target UUID, but with the given number of bytes.
- macOS 10.2+
The desired length for the UUID.
Returns an IOBluetoothSDPUUID object with the same data as the target but with the given length if it is possible to do so. Otherwise, nil is returned.
If the target object is the same length as newLength, it returns self. If newLength is greater it creates a new IOBluetoothSDPUUID object with the correct value for the given length. If newLength is smaller, it will attempt to create a new IOBluetoothSDPUUID that is smaller if the data matches the Bluetooth UUID base. This downconversion is currently unimplemented.