function tradeForKeys(amount) {
	const partner = 'partner_steam_id';
	const appid = 730;
	const contextid = 2;

	const offer = manager.createOffer(partner);

	manager.loadInventory(appid, contextid, true, (err, myInv) => {
		if (err) {
			console.log(err);
		}
		else {
			manager.loadUserInventory(partner, appid, contextid, true, (err, theirInv) => {
				if (err) {
					console.log(err);
				} else {
					keysAdded == 0
					while (sentOffers < (amount + 1)) {

					}

					offer.setMessage(`Automatically generated trade.`);
					offer.send((err, status) => {
						if (err) {
							console.log(err);
						} else {
							console.log(`Sent offer. Status: ${status}.`);
						}
					});
				}
			});
		}
	});
}