*/ public function get_licenses(); /** * Determines if the email is available for use. * * This is usually determined by the current license level. * * @since 4.7.3 * * @return bool */ public function is_available(); /** * Determines if the email is enabled (usually via a UI) and should send. * * @since 4.7.3 * * @return bool */ public function is_enabled(); /** * Returns the header content to load inside the template header. * * @since 4.7.3 * * @return string */ public function get_header_content(); /** * Returns the footer content to load inside the template footer. * * @since 4.7.3 * * @return string */ public function get_footer_content(); }