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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 parse_region(self, login_response):
 """ Return region from a successful login response. **Parameters:** - **login_response:** requests.Response from a successful login. **Returns:** region name. """

        auth_token = login_response.cgx_content['x_auth_token']
        auth_token_dict = self.parse_auth_token(auth_token)
        auth_region = auth_token_dict.get('region')
        return auth_region