* Proxies are used by {@link Ext.data.Store Stores} to handle the loading and saving of {@link Ext.data.Model Model}* @param {Ext.data.Batch} options.success.batch The {@link Ext.data.Batch batch} that was processed,* @param {Object} options.success.options The options argument that was originally passed into batch* @param {Ext.data.Batch} options.failure.batch The {@link Ext.data.Batch batch} that was processed,