code: async def georadiusbymember(self, name, member, radius, unit=None,
                                  withdist=False, withcoord=False, withhash=False,
                                  count=None, sort=None, store=None, store_dist=None):
          
          return await self._georadiusgeneric('GEORADIUSBYMEMBER',
                                              name, member, radius, unit=unit,
                                              withdist=withdist, withcoord=withcoord,
                                              withhash=withhash, count=count,
                                              sort=sort, store=store,
                                              store_dist=store_dist)
docs: This command is exactly like ``georadius`` with the sole difference
          that instead of taking, as the center of the area to query, a longitude
          and latitude value, it takes the name of a member already existing
          inside the geospatial index represented by the sorted set.