def versions(self):
        """
        Property for accessing :class:`VersionManager` instance, which is used to get server info.

        :rtype: yagocd.resources.version.VersionManager
        """
        if self._version_manager is None:
            self._version_manager = VersionManager(session=self._session)
        return self._version_manager
Property for accessing :class:`VersionManager` instance, which is used to get server info.

        :rtype: yagocd.resources.version.VersionManager