how to assign to correct models without ieee address

[amigomcu]

hi all,
i study this project, zigbee-demo to build self product now.
how to create a model without the models ieee address,
and the server app on zigbee znp.

how to assign to correct models when know the models information(endpoint id, device id ,in/out cluster and att id).

it seem need know device ieee address to read/write action(server.js),*1 and
build models(models.js)*2

*1:
ioServer.regReqHdlr('write', function (args, cb) {
var auxId = _.split(args.auxId, '/'), // [ epId, cid, rid ]
ieeeAddr = args.permAddr,
epId = parseInt(auxId[0]),
cid = auxId[2],
val = args.value,
ep = shepherd.find(ieeeAddr, epId);

    if (ieeeAddr === '0x00124b0001ce1003') {
        // ep.functional = model.functional;
        toggleDev(ep, cid, val);
    } else if (cid === 'genOnOff') {
        var cmd = val ? 'on' : 'off';
        ep.functional('genOnOff', cmd, {}, function (err, rsp) {});

}

*2.
var weatherDevInfo = {
type: 'EndDevice',
ieeeAddr: '0x00124b0001ce1001',
nwkAddr: 1,
manufId: 0,
epList: [ 1, 2 ],
endpoints: {
1: { // temperature
profId: 0x0104, epId: 1, devId: 770, inClusterList: [ 1026 ], outClusterList: [],
clusters: { msTemperatureMeasurement: { dir: 1, attrs: { measuredValue: 0 } } }
},
2: { // humidity
profId: 0x0104, epId: 2, devId: 770, inClusterList: [ 1029 ], outClusterList: [],
clusters: { msRelativeHumidity : { dir: 1, attrs: { measuredValue: 0 } } }
}
}
};