code: func (q *QRCode) addTerminatorBits(numTerminatorBits int) {
  	q.data.AppendNumBools(numTerminatorBits, false)
  }
docs: // addTerminatorBits adds final terminator bits to the encoded data.
  //
  // The number of terminator bits required is determined when the QR Code version
  // is chosen (which itself depends on the length of the data encoded). The
  // terminator bits are thus added after the QR Code version
  // is chosen, rather than at the data encoding stage.