I you have a custom action and within this you send if a specific condition is matched for your slots:
dispatcher.utter_template("utter_DoStuff", tracker)
is this utter_DoStuff
used for the policy to predict next actions? I mean do you have to write this in the stories additionally? When you do online training tis utter_template does not arise when send from within custom action. So my question is if this utter_template then used by the policie eg to memoize.