public LaunchTemplateBlockDeviceMapping withVirtualName(String virtualName) {
        setVirtualName(virtualName);
        return this;
    }
<p>
The virtual device name (ephemeralN).
</p>

@param virtualName
       The virtual device name (ephemeralN).
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/LaunchTemplateBlockDeviceMapping.java