public Optional<String> fsType() {
        return Optional.ofNullable(this.fsType);
    }
@return fsType to mount. Ex. &#34;ext4&#34;, &#34;xfs&#34;, &#34;ntfs&#34;. If not provided, the empty value is passed to the associated CSI driver which will determine the default filesystem to apply.
sdk/java/src/main/java/com/pulumi/kubernetes/core/v1/outputs/CSIVolumeSource.java