Question community.acceptConfirmationForObject is not a function

[soonduq]

const offer = manager.createOffer(''+user.link+'');
offer.addMyItem({
	"id": item.assetid, 
	"assetid": item.assetid, 
	"appid": 730, 
	"contextid": 2, 
	"amount": 1
});
offer.setMessage('Delivery "'+item.item+'" from sitename for '+user.name+' ['+helpers.getDateTime()+']');
offer.send(function(err, status) {
	if(err){
		util.log(`[BOT] Sent error: ${err}`);
	}else{
		util.log(`[BOT] Sending: ${item.item} for ${user.name}. TradeID# ${offer.id}`);
        community.acceptConfirmationForObject(identity, offer.id, function(err) {
			if(err){
				util.log(`[BOT] Error: ${err}`);
			}else{
				util.log(`[BOT] Tradeoffer #${offer.id} sent!`);
			}
		});
	}
});

After offer send, i've got error → TypeError: community.acceptConfirmationForObject is not a function

What is the problem?

startConfirmationChecker work successfully

 

[Dr. McKay]

Is steamcommunity up to date?