function pricing_url( $billing_cycle = WP_FS__PERIOD_ANNUALLY, $is_trial = false ) {
            $this->_logger->entrance();

            $params = array(
                'billing_cycle' => $billing_cycle
            );

            if ( $is_trial ) {
                $params['trial'] = 'true';
            }

            if ( $this->is_addon() ) {
                return $this->_parent->addon_url( $this->_slug );
            }

            return $this->_get_admin_page_url( 'pricing', $params );
        }