async def METHOD_NAME(self, name, options=None):
    q = '''
        SELECT (
            INSERT Counter {
                name := <str>$name,
                value := 1,
            } UNLESS CONFLICT ON .name
            ELSE (
                UPDATE Counter
                SET { value := .value + 1 }
            )
        ).value
    '''
    f = lambda tx: tx.query_single(q, name=name)
    results, iterations = await self.execute_concurrent_txs(f, f, options)
    self.assertEqual(set(results), {1, 2})
    self.assertEqual(iterations, 3)