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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def if_running(meth):
 """Decorator for service methods that must be ran only if service is in running state."""


        @wraps(meth)
        def check_running(self, *args, **kwargs):
            if not self.running:
                return
            return meth(self, *args, **kwargs)

        return check_running