code: function tuplesToStringTuples (tuples) {
    return tuples.map(tup => {
      const proto = protoFromTuple(tup)
      if (tup.length > 1) {
        return [proto.code, convert.toString(proto.code, tup[1])]
      }
      return [proto.code]
    })
  }
docs: [[int code, Buffer]... ] -> [[str name, str addr]... ]