Return a BlockReturnHandler that, if a layer block is created, will create a Wire of layer-colored probe type above the layer block and probe.define this at the end of the layer block. If no layer-block is created, then the result is pass-through.
Return a BlockReturnHandler that, if a layer block is created, will create a Wire of layer-colored probe type above the layer block and probe.define this at the end of the layer block. If no layer-block is created, then the result is pass-through.