def instance(self, other):
    assert '/' not in str(other)
    return Key(str(self) + ':' + str(other))
Process query statistics
dataset/ETHPy150Open datastore/datastore/datastore/core/key.py/Key.instance--crossover with--dataset/ETHPy150Open inconshreveable/sqltap/sqltap/sqltap.py/Reporter._process_stats