api: docstring updates (#3352)
api: docstring updates (#3352)

* api: update to latest definitions to match iterative/dvc.org/pull/908

* Update dvc/api.py

Co-authored-by: Ruslan Kuprieiev <f6538312ce47017d734b1357aabc970ebf896e32@gmail.com>

dmpetrov/dataversioncontrol,efiop/dvc,dmpetrov/dataversioncontrol,efiop/dvc