NetFlatten
NetFlatten[net] collapses nested NetChain and NetGraph objects within net.
NetFlatten[net, n]collapses up to nesting level n.
Examples
Flatten a nested network:
NetFlatten[NetChain[{NetChain[{LinearLayer[], Ramp}], LinearLayer[]}]]Flatten to specific level:
NetFlatten[net, 1]Please visit the official Wolfram Language Reference for more details.