function get_record_expiration( $key ) {
            $this->_logger->entrance( 'key = ' . $key );

            $cache_entry = $this->_options->get_option( $key, false );

            if ( is_object( $cache_entry ) &&
                 isset( $cache_entry->timestamp ) &&
                 is_numeric( $cache_entry->timestamp ) &&
                 $cache_entry->timestamp > WP_FS__SCRIPT_START_TIME
            ) {
                return $cache_entry->timestamp;
            }

            return false;
        }