public void setButtons(java.util.Collection<Button> buttons) {
        if (buttons == null) {
            this.buttons = null;
            return;
        }

        this.buttons = new java.util.ArrayList<Button>(buttons);
    }
<p>
The list of options to show to the user.
</p>

@param buttons
       The list of options to show to the user.
aws-java-sdk-lex/src/main/java/com/amazonaws/services/lexruntime/model/GenericAttachment.java