Configuration
fun Configuration( cameraFacing: CameraFacing = CameraFacing.FRONT, cameraPreviewScaleType: CameraPreviewScaleType = CameraPreviewScaleType.FIT, isTorchEnabled: Boolean = false, isVideoCaptureEnabled: Boolean = false, isDetectionLayerVisible: Boolean = false, sessionToken: String? = null, isCameraPreviewVisible: Boolean = true)