Try changing tmux test loop to not look for :help help

[cidrblock]

capture screen before and after to detect changes

something like this

        """interact with the tmux session"""
        start_time = date.now()
        current_screen = self._pane.capture_pane()
        self._pane.send_keys(value, suppress_history=False)
        updated_screen = self._pane.capture_pane()
        while current_screen == updated_screen:
            time.sleep(0.1)
            updated_screen = self._pane.capture_pane()
            if date.now() == start_time > 10s:
                break
        return updated_screen

[cidrblock]

this didn't play out @ganeshrn because we were picking up half updated screens, it seems for now looking for the help string after issuing a :command might be the best that can be done