code: func Encrypt(payload string, alg string, enc string, key interface{}, options ...func(*JoseConfig)) (token string, err error) {
  	return EncryptBytes([]byte(payload), alg, enc, key, options...)
  }
docs: // Encrypt produces encrypted JWT token given arbitrary string payload, key management and encryption algorithms to use (see constants for list of supported algs) and management key.
  // Management key is of different type for different key management alg, see specific
  // key management alg implementation documentation.
  //
  // It returns 5 parts encrypted JWT token as string and not nil error if something went wrong.