pub fn make_singleton_guard(
_module: &dyn CameraModule<CameraType = WrappedCamera, Guard = SimTerminateGuard>,
) -> Result<SimTerminateGuard>pub fn make_singleton_guard(
_module: &dyn CameraModule<CameraType = WrappedCamera, Guard = SimTerminateGuard>,
) -> Result<SimTerminateGuard>