Patch: shared parser target content.

[sanidhyamangal]

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@shcheklein, As per our discussion I am patching the content of target in shared parser kindly review it.

treeverse/dvc.org#416

[efiop]

@sanidhyamangal Your patch doesn't pass coding style checks. Check out our contributing guide: https://dvc.org/doc/user-guide/contributing . In short, this time you'll simply need to

pip install black
black dvc/

In the contrib guide, there is a note about installing pre-commit hook to check all of this for you when you are creating the commit on your machine.

[efiop]

Thanks @sanidhyamangal !