A node-like square that appears inside subnets and corresponds to the node wired into the subnet.
For example, suppose you have a font SOP, polyextrude SOP, and facet SOP connected together in a chain. If you collapse the polyextrude and facet SOPs into a subnet, you're left with a font SOP connected to a subnet SOP. Inside the subnet SOP is subnet indirect input #1 connected to a polyextrude SOP, which is connected to the facet SOP.
Each subnet indirect input is numbered starting from 1 and corresponds to an input connector on the subnet. (See hou.NodeConnection for more information on input connectors.)
The names of the subnet indirect inputs in the network pane correspond to the contents of the
Input #n Label parameters on the subnet node, where
n is the number.
Return the number of the corresponding input connector on the subnet. Note that the first input corresponds to the number 1, not 0.
Return the subnet node containing this indirect input. Nodes inside the subnet and this object share the same parent node.