How to use the invocations.packaging.release.VersionFile function in invocations

def needs_bump(self):
            expected = "\x1b[31m\u2718 needs version bump\x1b(B\x1b[m"
            assert VersionFile.NEEDS_BUMP.value == expected

def returns_lexica_for_reuse(self):
            actions = Lexicon(
                changelog=Changelog.NEEDS_RELEASE,
                version=VersionFile.NEEDS_BUMP,
                tag=Tag.NEEDS_CUTTING,
            )
            found_actions, found_state = _mock_status(self)
            assert found_actions == actions
            # Spot check state, don't need to check whole thing...
            assert found_state.branch == self._branch
            assert found_state.latest_version == Version("1.1.1")
            assert found_state.tags == [Version(x) for x in self._tags]

def no_updates_necessary(self):
                        _expect_actions(
                            self, Changelog.OKAY, VersionFile.OKAY, Tag.OKAY
                        )

sys.exit("Aborting.")

    # TODO: factor out what it means to edit a file:
    # - $EDITOR or explicit expansion of it in case no shell involved
    # - pty=True and hide=False, because otherwise things can be bad
    # - what else?

    # Changelog! (pty for non shite editing, eg vim sure won't like non-pty)
    if actions.changelog is Changelog.NEEDS_RELEASE:
        # TODO: identify top of list and inject a ready-made line? Requires vim
        # assumption...GREAT opportunity for class/method based tasks!
        cmd = "$EDITOR {0.packaging.changelog_file}".format(c)
        c.run(cmd, pty=True, hide=False)
    # TODO: add a step for checking reqs.txt / setup.py vs virtualenv contents
    # Version file!
    if actions.version == VersionFile.NEEDS_BUMP:
        # TODO: suggest the bump and/or overwrite the entire file? Assumes a
        # specific file format. Could be bad for users which expose __version__
        # but have other contents as well.
        version_file = os.path.join(
            _find_package(c),
            c.packaging.get("version_module", "_version") + ".py",
        )
        cmd = "$EDITOR {0}".format(version_file)
        c.run(cmd, pty=True, hide=False)
    if actions.tag == Tag.NEEDS_CUTTING:
        # Commit, if necessary, so the tag includes everything.
        # NOTE: this strips out untracked files. effort.
        cmd = 'git status --porcelain | egrep -v "^\\?"'
        if c.run(cmd, hide=True, warn=True).ok:
            c.run(
                'git commit -am "Cut {0}"'.format(state.expected_version),

#

    actions = Lexicon()

    # Changelog: needs new release entry if there are any unreleased issues for
    # current branch's line.
    # TODO: annotate with number of released issues [of each type?] - so not
    # just "up to date!" but "all set (will release 3 features & 5 bugs)"
    actions.changelog = Changelog.OKAY
    if release_type in (Release.BUGFIX, Release.FEATURE) and issues:
        actions.changelog = Changelog.NEEDS_RELEASE

    # Version file: simply whether version file equals the target version.
    # TODO: corner case of 'version file is >1 release in the future', but
    # that's still wrong, just would be a different 'bad' status output.
    actions.version = VersionFile.OKAY
    if state.current_version != state.expected_version:
        actions.version = VersionFile.NEEDS_BUMP

    # Git tag: similar to version file, except the check is existence of tag
    # instead of comparison to file contents. We even reuse the
    # 'expected_version' variable wholesale.
    actions.tag = Tag.OKAY
    if state.expected_version not in state.tags:
        actions.tag = Tag.NEEDS_CUTTING

    #
    # Return
    #

    return actions, state