public java.util.Map<String, String> getTokenSigningPublicKeys() {
        return tokenSigningPublicKeys;
    }
<p>
The public keys used to validate the token signature returned by your custom authentication service.
</p>

@return The public keys used to validate the token signature returned by your custom authentication service.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/AuthorizerDescription.java