[FSkeletalMeshConnectivityHandle](API\Plugins\Niagara\FSkeletalMeshConnectivityHandle) GetCachedConnectivity ( [TWeakObjectPtr](API\Runtime\Core\UObject\TWeakObjectPtr)< [USkeletalMesh](API\Runtime\Engine\Engine\USkeletalMesh) > & InMeshObject, int32 InLodIndex, [FSkeletalMeshConnectivityUsage](API\Plugins\Niagara\FSkeletalMeshConnectivityUsage) Usage, bool bNeedsDataImmediately )