public void setUserArn(String userArn) {
        this.userArn = userArn;
    }
<p>
The Amazon Resource Name (ARN) that identifies the user. For more information about ARNs and how to use ARNs in
policies, see <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_identifiers.html">IAM
Identifiers</a> in the <i>IAM User Guide</i>.
</p>

@param userArn
       The Amazon Resource Name (ARN) that identifies the user. For more information about ARNs and how to use
       ARNs in policies, see <a
       href="https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_identifiers.html">IAM Identifiers</a> in
       the <i>IAM User Guide</i>.
aws-java-sdk-finspace/src/main/java/com/amazonaws/services/finspace/model/UpdateKxUserResult.java