Calum Holker

> This looks great Calum. It also makes quite some changes to the API and where the circuits are stored so I need to make sure first this doesn't break...

> Thanks for the improvements, Calum. > > It would also be nice to add unit tests for each added/modified functionality, and especially to have an end-to-end regression test, for...

I had already fixed the bug in to_graph_like that you fixed in the recent commit (although have now updated the vertex alignments). I also just added a check that the...