TODO: write docs

TODO: write docs

error-details should be a map containing the following keys: :status - error status :title - error title (optional) :message - detailed error message (optional) returns a response map with the error page as the body and the status specified by the status key

Return, as a set, the names of the roles of which this user is a member.

renders the HTML template located relative to resources/templates in the context of this session and with these parameters.

renders the HTML template located relative to resources/templates in the context of this session and with these parameters.