public SetPermissionRequest withIamUserArn(String iamUserArn) {
        setIamUserArn(iamUserArn);
        return this;
    }
<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.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-opsworks/src/main/java/com/amazonaws/services/opsworks/model/SetPermissionRequest.java