How to use [auth.ticket.verify]

The reference page of auth.ticket.verify has its arguments, constraints and declaration.

This slot verifies that the currently authenticated user belongs to one or more roles provided as a comma separated list of names. If the user does not belong to any of the specified roles, the slot will throw an exception. Below is example usage.

auth.ticket.verify:root,admin,guest

Like all auth related slots, it only makes sense to invoke from within a context of having an authorised user, such as an HTTP endpoint intended to be invoked by an authenticated user.