docs: def read_uic4tag(fh, byteorder, dtype, planecount, offsetsize):
      """Read MetaMorph STK UIC4Tag from file and return as dict."""
      assert dtype == '1I' and byteorder == '<'
      result = {}
      while True:
          tagid = struct.unpack('<H', fh.read(2))[0]
          if tagid == 0:
              break
          name, value = read_uic_tag(fh, tagid, planecount, offset=False)
          result[name] = value
      return result