docs: def invalidate(self):
          """
          Invalidate access tokens with a client/access token pair
  
          Returns:
              dict: Empty or error dict
          """
          endpoint = '/invalidate'
  
          payload = {
              'accessToken': self.access_token,
              'clientToken': self.client_token,
          }
          self._ygg_req(endpoint, payload)
          self.client_token = ''
          self.access_token = ''
          self.available_profiles = []
          self.selected_profile = {}
          return True