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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 decode_payload_as(self,cls):
 """Reassembles the payload and decode it using another packet class"""

        s = bytes(self.payload)
        self.payload = cls(s, _internal=1, _underlayer=self)
        pp = self
        while pp.underlayer is not None:
            pp = pp.underlayer
        self.payload.dissection_done(pp)