from datetime import datetime
class User: def __init__(self, id, name): self.id = id self.name = name from datetime import datetime class User: def __init__(self,
def get_duration(self): if self.clock_out_time: return self.clock_out_time - self.clock_in_time else: return datetime.now() - self.clock_in_time from datetime import datetime class User: def __init__(self,