I’m working on a Python script that takes a set of input lines and assigns a mullion to the corresponding gridline that they intersect. However, I’m getting a strange error that I don’t know how to correct towards the end of the script. Python is telling me that it expected a MullionType and got a Family Type (see image). I’m using a modified version of Spring Nodes’ Collector.WallTypes that collects Mullion Types instead but the output of the node is a Family Type, which the script won’t accept. Any idea how to get the Mullion Type to feed into the final Python node?