Can't pass The Defenders mission.

I don't understand why I can't pass this mission. Check says: unit1 = Defender() unit2 = Rookie() fight(unit1, unit2) unit_1.health Your result: 0 Right result: 60

In mission there is not info about Rookie type, but I create that type with health and hit = 0. After fight I see thah unit_1.health is 60, but check says is 0. How can I pass mission?

From: https://py.checkio.org/mission/the-defenders/solve/

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