NetReplacePart[layer, "array" -> value]
NetReplacePart[net, "port" -> type]
NetReplacePart[net, "input" -> encoder]
NetReplacePart[net, "output" -> decoder]
NetReplacePart[net, lspec -> layer]
NetReplacePart[net, NetArray[name] -> value]
NetReplacePart[coder, "param" -> value]
NetReplacePart[net, {lspec, pspec} -> value]
NetReplacePart[…, {spec1 -> val1, spec2 -> val2, …}]