in Sencha touch 2 , can i create more than one models in single file like in model.js file ,I create two models e.g
Ext.define('Application.model.SleepTracker', { extend: 'Ext.data.Model',
config: {
fields:[]
}
});


Ext.define('Application.model.WaterTracker', { extend: 'Ext.data.Model',
config: {
fields:[]
}
});