* tune multi-arm ProtoECGNet * check loss term weights * potentially zero out contrastive loss and use protopnet defaults (clst 0.8, sep 0.08, div 100) * if current and defaults are bad, need to optimize * check protoecgnet cls init * replace learnable l1 and l2, optimize * optimize LR schedule and learning rate * get sahil things to send to attending (need to confirm details)