public Optional<Output<String>> medium() {
        return Optional.ofNullable(this.medium);
    }
@return medium represents what type of storage medium should back this directory. The default is &#34;&#34; which means to use the node&#39;s default medium. Must be an empty string (default) or Memory. More info: https://kubernetes.io/docs/concepts/storage/volumes#emptydir
sdk/java/src/main/java/com/pulumi/kubernetes/core/v1/inputs/EmptyDirVolumeSourcePatchArgs.java