code: public static MozuUrl updateCheckoutAttributeUrl(String checkoutId, Boolean removeMissing)
  	{
  		UrlFormatter formatter = new UrlFormatter("/api/commerce/checkouts/{checkoutId}/attributes?removeMissing={removeMissing}");
  		formatter.formatUrl("checkoutId", checkoutId);
  		formatter.formatUrl("removeMissing", removeMissing);
  		return new MozuUrl(formatter.getResourceUrl(), MozuUrl.UrlLocation.TENANT_POD) ;
  	}
docs: Get Resource Url for UpdateCheckoutAttribute
  @param checkoutId The unique identifier of the checkout.
  @param removeMissing If true, the operation removes missing properties so that the updated checkout attributes will not show properties with a null value.
  @return   String Resource Url