public java.util.List<String> getUserIds() {
        return userIds;
    }
<p>
An Amazon Web Services user's account ID or Amazon Resource Name (ARN). Use this ID to query the recommendation
feedback for a code review from that user.
</p>
<p>
The <code>UserId</code> is an IAM principal that can be specified as an Amazon Web Services account ID or an
Amazon Resource Name (ARN). For more information, see <a href=
"https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_principal.html#Principal_specifying"
> Specifying a Principal</a> in the <i>Amazon Web Services Identity and Access Management User Guide</i>.
</p>

@return An Amazon Web Services user's account ID or Amazon Resource Name (ARN). Use this ID to query the
        recommendation feedback for a code review from that user.</p>
        <p>
        The <code>UserId</code> is an IAM principal that can be specified as an Amazon Web Services account ID or
        an Amazon Resource Name (ARN). For more information, see <a href=
        "https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_principal.html#Principal_specifying"
        > Specifying a Principal</a> in the <i>Amazon Web Services Identity and Access Management User Guide</i>.
aws-java-sdk-codegurureviewer/src/main/java/com/amazonaws/services/codegurureviewer/model/ListRecommendationFeedbackRequest.java