public LaunchTemplatePlacement withHostResourceGroupArn(String hostResourceGroupArn) {
        setHostResourceGroupArn(hostResourceGroupArn);
        return this;
    }
<p>
The ARN of the host resource group in which to launch the instances.
</p>

@param hostResourceGroupArn
       The ARN of the host resource group in which to launch the instances.
@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/LaunchTemplatePlacement.java