@Override
    public int getOpCode() {
        return OP_CODE;
    }
Constructs LightCtlSetUnacknowledged message.

@param appKey               application key for this message
@param transitionSteps      transition steps for the lightLightness
@param transitionResolution transition resolution for the lightLightness
@param delay                delay for this message to be executed 0 - 1275 milliseconds
@param lightLightness       lightLightness of the LightCtlModel
@param lightTemperature     temperature of the LightCtlModel
@param lightDeltaUv         delta uv of the LightCtlModel
@param tId                  transaction id
@throws IllegalArgumentException if any illegal arguments are passed
mesh/src/main/java/no/nordicsemi/android/mesh/transport/LightCtlSetUnacknowledged.java