How to input CorridorFeatureLine into CorridorFeatureLine.Side node in Civil 3D dynamo?

The feature lines output by the Baseline.CorridorFeatureLineByCode node are merely a visual representation of the corridor. They are not independent entities that truly exist in the drawing database and do not possess their own ID property. Therefore, they cannot be directly used as input for nodes that require manipulating “real” objects.

The CorridorFeatureLine.Side node, on the other hand, requires “real” objects as input. The core issue lies in how to accomplish the conversion from “dynamic” to "static."