Indicates whether loops should be simple cycles (no repeated vertices) or
circuits (which allow repeated vertices but not repeated edges). In
terms of how the loops are built, this corresponds to closing off a loop
at the first repeated vertex vs. the first repeated edge.
Indicates whether loops should be simple cycles (no repeated vertices) or circuits (which allow repeated vertices but not repeated edges). In terms of how the loops are built, this corresponds to closing off a loop at the first repeated vertex vs. the first repeated edge.