public InstanceAccess withOperatingSystem(String operatingSystem) {
        setOperatingSystem(operatingSystem);
        return this;
    }
<p>
Operating system that is running on the instance.
</p>

@param operatingSystem
       Operating system that is running on the instance.
@return Returns a reference to this object so that method calls can be chained together.
@see OperatingSystem
aws-java-sdk-gamelift/src/main/java/com/amazonaws/services/gamelift/model/InstanceAccess.java