public function column_last_active( $item = array() ) {
		$last_active = groups_get_groupmeta( $item['id'], 'last_activity' );

		/**
		 * Filters the markup for the Last Active column.
		 *
		 * @since 1.7.0
		 *
		 * @param string $last_active Markup for the Last Active column.
		 * @parma array  $item        The current group item in the loop.
		 */
		echo apply_filters_ref_array( 'bp_groups_admin_get_group_last_active', array( $last_active, $item ) );
	}