public ChallengeAction getChallenge() {
        return this.challenge;
    }
<p>
Instructs WAF to run a <code>Challenge</code> check against the web request.
</p>

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