public java.util.List<KGKeyPairIds> getItems() {
        if (items == null) {
            items = new com.amazonaws.internal.SdkInternalList<KGKeyPairIds>();
        }
        return items;
    }
<p>
A list of key groups, including the identifiers of the public keys in each key group that CloudFront can use to
verify the signatures of signed URLs and signed cookies.
</p>

@return A list of key groups, including the identifiers of the public keys in each key group that CloudFront can
        use to verify the signatures of signed URLs and signed cookies.
aws-java-sdk-cloudfront/src/main/java/com/amazonaws/services/cloudfront/model/ActiveTrustedKeyGroups.java