public void setOperatingSystem(String operatingSystem) {
        this.operatingSystem = operatingSystem;
    }
<p>
Operating system eligible for this template post migration custom action.
</p>

@param operatingSystem
       Operating system eligible for this template post migration custom action.
aws-java-sdk-mgn/src/main/java/com/amazonaws/services/mgn/model/TemplateActionDocument.java