json representation _allRoles

[santos-pavelski]

how i can return a json representation of _allRoles private methods for dynamic acl controll?

something like that: acl._allRoles(function(err));

`//
// Return all roles in the hierarchy including the given roles.
//
Acl.prototype._allRoles = function(roleNames){
var _this = this;

return this._rolesParents(roleNames).then(function(parents){
if(parents.length > 0){
return _this._allRoles(parents).then(function(parentRoles){
return _.union(roleNames, parentRoles);
});
}else{
return roleNames;
}
});
};`