public GenericTemplateElementBuilder addBuyButton(String payload,
			PaymentSummary paymentSummary) {
		Button button = ButtonFactory.createBuyButton(payload, paymentSummary);
		this.element.addButton(button);
		return this;
	}
public GenericTemplateElementBuilder addBuyButton ( String payload , PaymentSummary paymentSummary ) { Button button = ButtonFactory . createBuyButton ( payload , paymentSummary ) ; this . element . addButton ( button ) ; return this ; }
Adds a buy button on a generic template.

@param payload
the payload
@param paymentSummary
the payment summary
@return this builder.