getServerSteamIDsByIP(ips, callback) {
		return StdLib.Promises.timeoutCallbackPromise(10000, ['servers'], callback, (resolve, reject) => {
			this._sendUnified('GameServers.GetServerSteamIDsByIP#1', {
				server_ips: ips
			}, (body) => {
				let servers = {};

				(body.servers || []).forEach((server) => {
					servers[server.addr] = new SteamID(server.steamid.toString());
				});

				resolve({servers});
			});
		});
	}
Get the associated SteamIDs for given server IPs.
@param {string[]} ips
@param {function} [callback]