message: Fix scalar ek.Loop bindings
diff: @@ -24,8 +24,11 @@ void export_scalar(py::module_ &m) {
  bind_pcg32<uint64_t>(scalar);
  - struct LoopDummy { LoopDummy(py::args) { }};
  + struct LoopDummy { LoopDummy(const char*, py::args) { }};
  py::class_<LoopDummy>(scalar, "Loop")
  - .def(py::init<py::args>())
  - .def("cond", [](LoopDummy&, bool value) { return value; });
  + .def(py::init<const char*, py::args>())
  + .def("put", [](LoopDummy&, py::args) {})
  + .def("init", [](LoopDummy&) {})
  + .def("__call__", [](LoopDummy&) { return false; })
  + .def("__call__", [](LoopDummy&, bool value) { return value; });
  }
  