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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 handle_Sample(self, instance):
 """If this sample has a single AR, go there. If the sample has 0 or >1 ARs, go to the sample's view URL. """

        ars = instance.getAnalysisRequests()
        if len(ars) == 1:
            return self.handle_AnalysisRequest(ars[0])
        else:
            return instance.absolute_url()