code: def get_parcel(resource_root, product, version, cluster_name="default"):
    
    return _get_parcel(resource_root, PARCEL_PATH % (cluster_name, product, version))
docs: Lookup a parcel by name
    @param resource_root: The root Resource object.
    @param product: Parcel product name
    @param version: Parcel version
    @param cluster_name: Cluster name
    @return: An ApiService object