code: func EasySeal(message []byte, key nacl.Key) []byte {
  	nonce := nacl.NewNonce()
  	return Seal(nonce[:], message, nonce, key)
  }
docs: // EasySeal encrypts message using key. A 24-byte nonce is generated and
  // prepended to the output. The key and nonce pair must be unique for each
  // distinct message, and the output will be Overhead+24 bytes longer than
  // message.