public function get_settings() {

		/**
		 * Modify LifterLMS Admin Settings on the "Engagements" tab,
		 *
		 * @since 1.0.0
		 *
		 * @param array[] $settings Array of settings fields arrays.
		 */
		return apply_filters(
			'lifterlms_engagements_settings',
			array_merge(
				$this->get_settings_group_email(),
				$this->get_settings_group_email_delivery(),
				$this->get_settings_group_achievements(),
				$this->get_settings_group_certs()
			)
		);

	}