public String getThroughputMode() {
        return this.throughputMode;
    }
<p>
(Optional) Updates the file system's throughput mode. If you're not updating your throughput mode, you don't need
to provide this value in your request. If you are changing the <code>ThroughputMode</code> to
<code>provisioned</code>, you must also set a value for <code>ProvisionedThroughputInMibps</code>.
</p>

@return (Optional) Updates the file system's throughput mode. If you're not updating your throughput mode, you
        don't need to provide this value in your request. If you are changing the <code>ThroughputMode</code> to
        <code>provisioned</code>, you must also set a value for <code>ProvisionedThroughputInMibps</code>.
@see ThroughputMode
aws-java-sdk-efs/src/main/java/com/amazonaws/services/elasticfilesystem/model/UpdateFileSystemRequest.java