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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 do(self):
 """Executes the request represented by this object. The requests library will be used for this purpose. Returns an instance of requests.Response. """

        data = None
        if self.body is not None and self.body != b'':
            data = self.body
        return requests.request(self.method, str(self.url), data=data, headers=self.header)