def logout(self):
        if self._session_id:
            LOG.info(_LI("Logging out and terminating the current session "
                         "with ID = %s."),
                     _trunc_id(self._session_id))
            try:
                self.vim.Logout(self.vim.service_content.sessionManager)
                self._session_id = None
            except Exception:
                LOG.exception(_LE("Error occurred while logging out and "
                                  "terminating the current session with "
                                  "ID = %s."),
                              _trunc_id(self._session_id))
        else:
            LOG.debug("No session exists to log out.")
"V.domisize_tuple(X) -> tuple of ints
dataset/ETHPy150Open openstack/oslo.vmware/oslo_vmware/api.py/VMwareAPISession.logout--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/guppy-0.1.10/guppy/heapy/View.py/_GLUECLAMP_.domisize_tuple