code: func GetClientPackage(platform string) (string, error) {
  	pkg := clientPkgPrefix + platform
  	if err := common.ValidatePackageName(pkg); err != nil {
  		return "", err
  	}
  	return pkg, nil
  }
docs: // GetClientPackage returns the name of the client package for CIPD client for
  // the given platform.
  //
  // Returns an error if the platform name is invalid.