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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 send(self, request, stem=None):
 """Prepare and send a request Arguments: request: a Request object that is not yet prepared stem: a path to append to the root URL Returns: The response to the request """

        if stem is not None:
            request.url = request.url + "/" + stem.lstrip("/")

        prepped = self.session.prepare_request(request)
        settings = self.session.merge_environment_settings(url=prepped.url,
                                                           proxies={},
                                                           stream=None,
                                                           verify=None,
                                                           cert=None)

        return self.session.send(prepped, **settings)