@classmethod
  def CreateUserOwnedBy(cls, user_id):
    return Accounting('%s:%d' % (Accounting.USER_SIZE, user_id), Accounting.OWNED_BY)
Unit test of TeardownCluster() with prefix.
dataset/ETHPy150Open viewfinderco/viewfinder/backend/db/accounting.py/Accounting.CreateUserOwnedBy--crossover with--dataset/ETHPy150Open GoogleCloudPlatform/solutions-google-compute-engine-cluster-for-hadoop/gce_cluster_test.py/GceClusterTest.testTeardownCluster_WithPrefix