def ref_alias(self, alias):
        self.alias_refcount[alias] += 1
Pattern for testing input/output of a function
dataset/ETHPy150Open django/django/django/db/models/sql/query.py/Query.ref_alias--crossover with--dataset/ETHPy150Open garethr/django-test-extensions/src/test_extensions/examples/examples.py/Examples.test_simple_addition