public string[] GetUsersInRole(string tenantName, string roleName)
        {
            if (string.IsNullOrEmpty(tenantName))
            {
                throw new ArgumentNullException("tenantName");
            }
            if (string.IsNullOrEmpty(roleName))
            {
                throw new ArgumentNullException("roleName");
            }

            return(AuthorizationLogic.GetUsersInRole(tenantName, roleName));
        }