* Sets the updating behavior based on batch synchronization. 'operation' (the default) will update the Store's
* internal representation of the data after each operation of the batch has completed, 'complete' will wait until
* the entire batch has been completed before updating the Store's data. 'complete' is a good choice for local
* storage proxies, 'operation' is better for remote proxies, where there is a comparatively high latency.
* Sets the updating behavior based on batch synchronization. 'operation' (the default) will update the Store's
* internal representation of the data after each operation of the batch has completed, 'complete' will wait until
* the entire batch has been completed before updating the Store's data. 'complete' is a good choice for local
* storage proxies, 'operation' is better for remote proxies, where there is a comparatively high latency.