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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 complete(self, GET):
 """ When redirect back to our application, try to complete the flow by requesting an access token. If the access token request fails, it'll throw an `OAuthError`. Tries to complete the flow by validating against the `GET` paramters received. """

        token = self.get_access_token(verifier=GET.get('oauth_verifier', None))
        return token