particular you say stop stop right you take the representation up you and you do this with two different mini batches so here is this is cat one down back here is cat two dog that's a captain you pass it in right here you take it out here you pass it through the network and you take it out so you now have two different forward paths of two different mini batches and then you define a lambda and I guess they randomly sample a lambda in zero one right in the range of 0 1 so this is a mixing coefficient and then you mix you