code: def loc_observations(self, request):
          
          return json.loads(self._query(VAL, OBSERVATIONS, ALL, request, HOURLY).decode(errors="replace"))
docs: Return location-specific observation data, including a list of sites
          (time step will be HOURLY).
          
          request: 
              metoffer.SITELIST        Returns available sites
              metoffer.CAPABILITIES    Returns available times
              site ID, e.g. "3021"     Returns observation data for site
              metoffer.ALL             Returns observation data for ALL sites