code: func (c *Client) Stream(serviceMethod string, args interface{}) (io.ReadCloser, error) {
  	var buf bytes.Buffer
  	if err := json.NewEncoder(&buf).Encode(args); err != nil {
  		return nil, err
  	}
  	return c.callWithRetry(serviceMethod, &buf, true)
  }
docs: // Stream calls the specified method with the specified arguments for the plugin and returns the response body