pub fn boolean_with_token(
mesh_a: &ManifoldImpl,
mesh_b: &ManifoldImpl,
op: OpType,
token: Option<&CancelToken>,
) -> ManifoldImplExpand description
boolean with cooperative cancellation.
A cancelled operation yields an empty mesh whose status is
Error::Cancelled, matching what C++ produces via MakeEmpty(Cancelled)
at every checkpoint (execution_impl.h:150-160, boolean_result.cpp:758-770).