import SGPClient from 'sgp';

const client = new SGPClient({
  apiKey: 'My API Key',
});

const response = await client.modelServers.updateBackend('model_server_id', {
  new_model_deployment_id: 'new_model_deployment_id',
});

console.log(response.account_id);

{
  "name": "<string>",
  "model_server_id": "<string>",
  "model_deployment_id": "<string>",
  "account_id": "<string>",
  "alias": "<string>",
  "new_model_deployment_id": "<string>",
  "old_model_deployment_id": "<string>"
}