# fixhunt regression fixture: ruff RUF019, ruff 0.17.1
# the fix labelled safe changes the program's output on this program
# before the fix: stdout "second: calls=0", exit 0
# after the fix: no stdout, stderr "AttributeError: 'SideEffectMap' object has no attribute 'get'", exit 1
# finding 2026-10-17T21-39-23-080Z-ah8u-ruff-RUF019/r2-p002; rule fired 1 time(s) before the fix

class SideEffectMap:
    def __init__(self):
        self.data = {'x': 1}
        self.calls = 0
    def __contains__(self, key):
        return key in self.data
    def __getitem__(self, key):
        return self.data[key]
m = SideEffectMap()
if 'x' in m and m['x']:
    print(f'second: calls={m.calls}')