code: def _geohash_to_bits(value):
    
    b = map(BASE32MAP.get, value)
    ret = []
    for i in b:
      out = []
      for z in range(5):
        out.append(i & 0b1)
        i = i >> 1
      ret += out[::-1]
    return ret
docs: Convert a GeoHash to a list of GeoHash bits.