Use the requests library to make a request.
        Using this method is like doing:

            requests.request(method, url, auth=client.auth())

def request(self, method, url, **kwargs):
        '''Use the requests library to make a request.
        Using this method is like doing:

            requests.request(method, url, auth=client.auth())
        '''
        # TODO should we raise an exception if auth or cookies are explicitly
        # mentioned in kwargs?
        kwargs['auth'] = self.auth()
        kwargs['cookies'] = self.cookies
        return requests.request(method=method, url=url, **kwargs)