code: func NewArmor62EncoderStream(encoded io.Writer, typ MessageType, brand string) (io.WriteCloser, error) {
  	hdr := makeFrame(headerMarker, typ, brand)
  	ftr := makeFrame(footerMarker, typ, brand)
  	return newArmorEncoderStream(encoded, hdr, ftr, Armor62Params)
  }
docs: // NewArmor62EncoderStream makes a new Armor 62 encoding stream, using the base62-alphabet
  // and a 32/43 encoding rate strategy. Pass it an `encoded` stream writer to write the
  // encoded stream to.  Also pass an optional "brand" .  It will
  // return an io.WriteCloser on success, that you can write raw (unencoded) data to.
  // An error will be returned if there is trouble writing the header to encoded.
  //
  // To make the output look pretty, a space is inserted every 15 characters of output,
  // and a newline is inserted every 200 words.