[keycloak-dev] Is there an existing protocol mapper that can add a claim (serialized kerberos ticket) from the Keycloak Context?

I'm trying to put together a Pull request that will add a kerb ticket as a claim from a kerb user/password authentication. The kerb ticket is saved as a keycloakcontext attribute I have not seen anything like an existing protocol mapper that will do this. I have a new protocol mapper, but I'd like my pull to be as small and simple as possible. Thank you Christopher Smith