empty: 2.0 (?)

[NotNull]

As the empty: function does not detect alternate datastreams of a folder [1], an alternative:

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online:empty:    fromdisk:total-size:0    <!fromdisk:alternate-data-stream-count: | fromdisk:alternate-data-stream-count:0>

The !fromdisk:alternate-data-stream-count: is needed to cater to non-NTFS volumes.
I guess online:empty: fromdisk:total-size:0 !fromdisk:alternate-data-stream-count: should work too, but is not tested.



[1] test with the followingf CMD commands

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md empty_folder
echo some text > empty_folder:datastream1.txt
dir /r folder