docs: def get(self, point, buffer_size=0, multiple=False):
          """ lookup state and county based on geohash of coordinates from tweet """
          lon, lat = point
          geohash = Geohash.encode(lat, lon, precision=self.precision)
          key = (geohash, buffer_size, multiple)
          if key in self.geohash_cache:
              # cache hit on geohash
              self.hit += 1
              #print self.hit, self.miss
              return self.geohash_cache[key]
          self.miss += 1
          # cache miss on geohash
          # project point to ESRI:102005
          lat, lon = Geohash.decode(geohash)
          proj_point = project([float(lon), float(lat)])
          args = dict(buffer_size=buffer_size, multiple=multiple)
          payload = self.get_object(proj_point, **args)
          self.geohash_cache[key] = payload
          return payload