bp_activity_get_specific( array|string $args = '' )

function bp_activity_get_specific( $args = '' ) {

	$r = bp_parse_args( $args, array(
		'activity_ids'      => false,      // A single activity_id or array of IDs.
		'display_comments'  => false,      // True or false to display threaded comments for these specific activity items.
		'max'               => false,      // Maximum number of results to return.
		'page'              => 1,          // Page 1 without a per_page will result in no pagination.
		'per_page'          => false,      // Results per page.
		'show_hidden'       => true,       // When fetching specific items, show all.
		'sort'              => 'DESC',     // Sort ASC or DESC
		'spam'              => 'ham_only', // Retrieve items marked as spam.
		'update_meta_cache' => true,
	), 'activity_get_specific' );

	$get_args = array(
		'display_comments'  => $r['display_comments'],
		'in'                => $r['activity_ids'],
		'max'               => $r['max'],
		'page'              => $r['page'],
		'per_page'          => $r['per_page'],
		'show_hidden'       => $r['show_hidden'],
		'sort'              => $r['sort'],
		'spam'              => $r['spam'],
		'update_meta_cache' => $r['update_meta_cache'],
	);

	/**
	 * Filters the requested specific activity item.
	 *
	 * @since BuddyPress 1.2.0
	 *
	 * @param BP_Activity_Activity $activity Requested activity object.
	 * @param array                $args     Original passed in arguments.
	 * @param array                $get_args Constructed arguments used with request.
	 */
	return apply_filters( 'bp_activity_get_specific', BP_Activity_Activity::get( $get_args ), $args, $get_args );
}