public void setIamUserArn(String iamUserArn) {
        this.iamUserArn = iamUserArn;
    }
<p>
The user's IAM ARN. This can also be a federated user's ARN.
</p>

@param iamUserArn
       The user's IAM ARN. This can also be a federated user's ARN.
aws-java-sdk-opsworks/src/main/java/com/amazonaws/services/opsworks/model/SetPermissionRequest.java