BP_Friends_Friendship::get_user_ids_for_friendship( int $friendship_id )

	public static function get_user_ids_for_friendship( $friendship_id ) {

		$friendship = new BP_Friends_Friendship( $friendship_id, false, false );

		if ( empty( $friendship->id ) ) {
			return null;
		}

		$retval = new StdClass;
		$retval->friend_user_id = $friendship->friend_user_id;
		$retval->initiator_user_id = $friendship->initiator_user_id;

		return $retval;
	}