How to use the xlwings.utils.VersionNumber function in xlwings

def __lt__(self, other):
        if isinstance(other, VersionNumber):
            return self.value < other.value
        elif isinstance(other, string_types):
            return self.value < VersionNumber(other).value
        elif isinstance(other, tuple):
            return self.value[:len(other)] < other
        elif isinstance(other, int):
            return self.major < other
        else:
            raise TypeError("Cannot compare other object with version number")

def __lt__(self, other):
        if isinstance(other, VersionNumber):
            return self.value < other.value
        elif isinstance(other, string_types):
            return self.value < VersionNumber(other).value
        elif isinstance(other, tuple):
            return self.value[:len(other)] < other
        elif isinstance(other, int):
            return self.major < other
        else:
            raise TypeError("Cannot compare other object with version number")

def add(self, filename, link_to_file, save_with_document, left, top, width, height):

        version = VersionNumber(self.parent.book.app.version)

        if not link_to_file and version >= 15:
            # Office 2016 for Mac is sandboxed. This path seems to work without the need of granting access explicitly
            xlwings_picture = os.path.expanduser("~") + '/Library/Containers/com.microsoft.Excel/Data/xlwings_picture.png'
            shutil.copy2(filename, xlwings_picture)
            filename = xlwings_picture

        sheet_index = self.parent.xl.entry_index.get()
        picture = Picture(
            self.parent,
            self.parent.xl.make(
                at=self.parent.book.xl.sheets[sheet_index],
                new=kw.picture,
                with_properties={
                    kw.file_name: posix_to_hfs_path(filename),
                    kw.link_to_file: link_to_file,

def __eq__(self, other):
        if isinstance(other, VersionNumber):
            return self.value == other.value
        elif isinstance(other, string_types):
            return self.value == VersionNumber(other).value
        elif isinstance(other, tuple):
            return self.value[:len(other)] == other
        elif isinstance(other, int):
            return self.major == other
        else:
            return False

def __eq__(self, other):
        if isinstance(other, VersionNumber):
            return self.value == other.value
        elif isinstance(other, string_types):
            return self.value == VersionNumber(other).value
        elif isinstance(other, tuple):
            return self.value[:len(other)] == other
        elif isinstance(other, int):
            return self.major == other
        else:
            return False

def version(self):
        """
        Returns the Excel version number object.

        Examples
        --------
        >>> import xlwings as xw
        >>> xw.App().version
        VersionNumber('15.24')
        >>> xw.apps[10559].version.major
        15

        .. versionchanged:: 0.9.0
        """
        return VersionNumber(self.impl.version)