def CreateSliver(self, slice_urn, credentials, rspec, users):
        print (slice_urn) % 'CreateSliver(%r)'
        return '<rspec type="GCF"/>'
dataset/ETHPy150Open fp7-ofelia/ocf/ofam/src/src/ext/geni/am.py/PrintingAggregateManager.CreateSliver/swapped operands of `%`