code: func (r Virtual_Guest) ValidateImageTemplate(imageTemplateId *int) (resp bool, err error) {
  	params := []interface{}{
  		imageTemplateId,
  	}
  	err = r.Session.DoRequest("SoftLayer_Virtual_Guest", "validateImageTemplate", params, &r.Options, &resp)
  	return
  }
docs: // Validate an image template for OS Reload