part001 = startSketchOn('XY')
  |> startProfileAt([0, 0], %)
  |> line(end = [0, 10], tag = $thing)
  |> line(end = [10, 0])
  |> line(end = [0, -10], tag = $thing2)
  |> close(tag = $thing3)
  |> extrude(length = 10)
  |> fillet({
       radius = 2,
       tags = [thing3, getOppositeEdge(thing3)]
     }, %)
