Support DVC format diffs? data people already familiar with

[lisad]

https://dvc.org/doc/command-reference/diff

Yulia recommends this

[jeffkole]

Love it... but the documentation doesn't make it sound like it can diff the data itself, just whether files were added, deleted, moved, or changed. If it did data diffs and that feature were accessible via its Python API, that would be perfect. More to look into here to see if that is possible.