Conveniently for us, the todo package starts the enum at 1, and given that it doesn't have a "none" value, we're setting ours to 0.

Special commit hash for empty tree object.

Branch : A git branch duplicating this for now.

Commit : A git commit.

CommitFile : A git commit file.

File : A file from git status duplicating this for now.

Remote : A git remote.

Remote Branch : A git remote branch.

StashEntry : A git stash entry.

Tag : A git tag.

sometimes we need to deal with either a node (which contains a file) or an actual file.