Add Leader Vertex to Structure/Pipe Labels in Python

In Civil 3D, if a structure or pipe label is selected, a plus sign shows up near the center of the leader line, it can be used to add a leader vertex.

Is there a way to achieve the same result in Python? I can’t seem to find anything in the documentation that can do this.
Screenshot 2021-08-13 152729


Nope. Leader vertices are not exposed in the API.