public DescribeGatewayInformationResult withEc2InstanceRegion(String ec2InstanceRegion) {
        setEc2InstanceRegion(ec2InstanceRegion);
        return this;
    }
<p>
The Amazon Web Services Region where the Amazon EC2 instance is located.
</p>

@param ec2InstanceRegion
       The Amazon Web Services Region where the Amazon EC2 instance is located.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-storagegateway/src/main/java/com/amazonaws/services/storagegateway/model/DescribeGatewayInformationResult.java