Duo SAML Integration

Does anyone have a working SAML SSO implementation for mutli-factor authentication between Mattermost and Duo? We are looking for config examples and an order of operations similar to the guides that Mattermost provides here for Okta and OneLogin:
https://docs.mattermost.com/deployment/sso-saml.html

Any help would be greatly appreciated, and perhaps could be used by Mattermost to enrich the official Mattermost documentation.