docs: public static String generateAccessKeyId() {
  		// Based on http://stackoverflow.com/a/41156/535203
  		final char[] accessKeyId = new char[ACCESS_KEY_ID_LENGTH];
  		for (int i = 0; i < accessKeyId.length; i++) {
  			accessKeyId[i] = SYMBOLS[SECURE_RANDOM.nextInt(SYMBOLS.length)];
  		}
  		return new String(accessKeyId);
  	}