
sec.privilegeAddRoles( action as String, kind as String, role-names as String[] ) as null
  Adds the roles ($role-names) to the list of roles assigned to the 
  privilege ($action,$kind).
  If a privilege identified by ($action,$kind) is not found, an error is 
  returned.
 
  If one of $role-names does not correspond to an existing role,
  an error is returned.
  If the current user is limited to granting only his/her roles,
  and $role is not a subset of the current user's roles, then an error is
  returned.
  
http://marklogic.com/xdmp/privileges/privilege-add-roles http://marklogic.com/xdmp/privileges/grant-all-roles orhttp://marklogic.com/xdmp/privileges/grant-my-roles
  This function must be executed against the security database.
// execute this against the security database
declareUpdate();  
const sec = require('/MarkLogic/security.xqy');
sec.privilegeAddRoles(
    "http://marklogic.com/xdmp/privileges/unprotected-collections",
    "execute",
    ["Temporary"])
   
// Adds the unprotected-collection execute privilege to the Temporary role.