public function column_plugins( $blog ) {
		if ( has_filter( 'wpmublogsaction' ) ) {
			/**
			 * Fires inside the auxiliary 'Actions' column of the Sites list table.
			 *
			 * By default this column is hidden unless something is hooked to the action.
			 *
			 * @since MU (3.0.0)
			 *
			 * @param int $blog_id The site ID.
			 */
			do_action( 'wpmublogsaction', $blog['blog_id'] );
		}
	}