class TmuxResurrect:
    def before_workspace_builder(self, session):
        # On blank workspace, after session created, but before any windows/panes/commands entered

        # technically, it'd be possible to do any kind of subprocess call here as well

    def before_script(self, session):
        # access to libtmux session object in tmuxp load

   def reattach(self, session):
       # if session_name already live, before reattaching

   def on_window_create(self, window):
        if window.window_name == 'my window':
            # do stuff

   def after_window_finished(self, window):  # after commands stuff commands finally entered
       pass