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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_parcel(resource_root, product, version, cluster_name="default"):
 """ 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 """

  return _get_parcel(resource_root, PARCEL_PATH % (cluster_name, product, version))