xdmp.useridRolesxdmp.useridrolesxdmpuseridroles/apidoc/8.0/xdmp:userid-roles.xml
Returns all roles assigned to a user, including roles directly assigned
to the user and roles inherited by other roles.
The user name.
userIdString
An external security config ID. This is needed only for external user.
extSecIdString
A boolean value to specify whether to use security database first or not.
If not specified, defaults to the current app server's setting,
or true when running on the task server.
secDbFirstBooleanValueIterator
http://marklogic.com/xdmp/privileges/xdmp-user-roles