Static routes, you better avoid them, but sometimes you must have them :-) You can find sample apps for IPv6 static routing at:
https://github.com/CiscoDevNet/ydk-py-samples/tree/master/samples/basic/ydk/models/ip
You'll find samples for routing to a next-hop address, routing to an output interface (Null0) and routing to a next hop with a high admin distance (floating static route) with object tracking. One last app illustrates how to delete all IPv6 static routes. Last but not least, you'll find a complete set of boilerplate apps using the CRUD service. As always, you can use those apps as a starting point to create your own.
Don't forget to review the README file for how to use these basic apps. You'll find it at:
https://github.com/CiscoDevNet/ydk-py-samples/tree/master/samples/basic
Happy coding!
