def lookup
      if !options[:street_address] and (options[:ip_address] or ip_address?)
        name = options[:ip_lookup] || Configuration.ip_lookup || Geocoder::Lookup.ip_services.first
      else
        name = options[:lookup] || Configuration.lookup || Geocoder::Lookup.street_services.first
      end
      Lookup.get(name)
    end
def lookup
      if !options[:street_address] and (options[:ip_address] or ip_address?)
        name = options[:ip_lookup] || Configuration.ip_lookup || Geocoder::Lookup.ip_services.first
      else
        name = options[:lookup] || Configuration.lookup || Geocoder::Lookup.street_services.first
      end
      Lookup.get(name)
    end
Get a Lookup object (which communicates with the remote geocoding API)
 appropriate to the Query text.