static public String composeApiCommand(String function, Object... arguments) {
    StringBuilder apiCmd = new StringBuilder(256);
    apiCmd.append('(');
    apiCmd.append(function);
    for (Object arg : arguments) {
      apiCmd.append(" ");
      apiCmd.append(DefaultCycObject.stringApiValue(arg));
    }
    apiCmd.append(')');
    return apiCmd.toString();
  }