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