public function delete( &$webhook ) {
		global $wpdb;

		$wpdb->delete(
			$wpdb->prefix . 'wc_webhooks',
			array(
				'webhook_id' => $webhook->get_id(),
			),
			array( '%d' )
		); // WPCS: cache ok, DB call ok.

		$this->delete_transients( 'all' );
		wp_cache_delete( $webhook->get_id(), 'webhooks' );
		WC_Cache_Helper::invalidate_cache_group( 'webhooks' );
		do_action( 'woocommerce_webhook_deleted', $webhook->get_id(), $webhook );
	}