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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 dispatch(self, request, *args, **kwargs):
 """Dispatch all HTTP methods to the proxy."""

        self.request = DownstreamRequest(request)
        self.args = args
        self.kwargs = kwargs

        self._verify_config()

        self.middleware = MiddlewareSet(self.proxy_middleware)

        return self.proxy()