def splitIntoTetrahedra(poly = "const PolyClipperPolyhedron&",
                        tol = ("const double", "0.0")):
    """Split a PolyClipper::Polyhedron into tetrahedra.
The result is returned as a vector<vector<int>>, where each inner vector is a set of four
ints representing vertex indices in the input Polyhedron."""
    return "std::vector<std::vector<int>>"