public void setCaptcha(CaptchaAction captcha) {
        this.captcha = captcha;
    }
<p>
Instructs WAF to run a <code>CAPTCHA</code> check against the web request.
</p>

@param captcha
       Instructs WAF to run a <code>CAPTCHA</code> check against the web request.
aws-java-sdk-wafv2/src/main/java/com/amazonaws/services/wafv2/model/RuleAction.java