public void ResolveServicesUsing(ISecurityServiceLocator securityServiceLocator)
        {
            if (securityServiceLocator == null)
            {
                throw new ArgumentNullException("securityServiceLocator");
            }

            ExternalServiceLocator = securityServiceLocator;
        }
        public void ResolveServicesUsing(ISecurityServiceLocator securityServiceLocator)
        {
            if (securityServiceLocator == null)
            {
                throw new ArgumentNullException(nameof(securityServiceLocator));
            }

            Runtime.ExternalServiceLocator = securityServiceLocator;
        }