Autocomplete parse method documentation

Autocomplete parse method documentation

Hi,
   I am new to jQuery and using the http://docs.jquery.com/Plugins/Autocomplete autocomplete plugin.I am not able to find the documentation on usage of parse option in http://docs.jquery.com/Plugins/Autocomplete/autocomplete#url_or_dataoptions

Can you please add details like what goes into data,value and result name/value pairs and when to use it.

Thanks,
Sampat.