code: def regenerate_recovery_code(self, user_id):
          
          url = self._url('{}/recovery-code-regeneration'.format(user_id))
          return self.client.post(url)
docs: Removes the current recovery token, generates and returns a new one
  
          Args:
              user_id (str):  The user_id of the user identity.
  
          See: https://auth0.com/docs/api/management/v2#!/Users/post_recovery_code_regeneration