steamcommunity/resources/EConfirmationType.js

Provides an interface for logging into and interacting with the Steam Community website

/**
 * @enum EConfirmationType
 */
module.exports = {
	// 1 is unknown, possibly "Invalid"
	"Trade": 2,
	"MarketListing": 3,
	// 4 is opt-out or other like account confirmation?

	"2": "Trade",
	"3": "MarketListing"
};