Inability to differentiate exceptions

Hi,

I'm using this module to geocode addresses and would like to catch exceptions when Google API fails (e.g. returns some error or status that is not OK). I investigated a bit the source code and found that module also throws exception when API returns zero results (i.e. returns status ZERO_RESULTS). Wouldn't it be better to return empty result as it is expected behaviour for incorrect input data?

Thanks in advance