code: func (c *ApplicationPageIterator) Next(ctx context.Context) (*ApplicationPage, error) {
  	ap := new(ApplicationPage)
  	err := c.p.Next(ctx, ap)
  	if err != nil {
  		return nil, err
  	}
  	c.p.SetNextPageURI(ap.NextPageURI)
  	return ap, nil
  }
docs: // Next returns the next page of resources. If there are no more resources,
  // NoMoreResults is returned.