Function mapOptionalOptional

blockscipy/src/generic_proxy/optional_map.cpp:32–40

	template<typename R>
	Proxy<ranges::optional<R>> mapOptionalOptional(OptionalProxy &p, Proxy<ranges::optional<R>> &p2) {
		return liftGeneric(p, [p2](auto && opt) -> ranges::optional<R> {
			if (opt) {
				return p2(opt->toAny());
			} else {
				return ranges::nullopt;
			}
		});
	}

	template <typename T>
	void addOptionalProxyMapMethodsImpl(pybind11::class_<OptionalProxy, RangeProxy> &cl) {