code: def editPlan(self, plan, new_plan):
          
          data = {
              "event_reminder_id": plan.uid,
              "delete": "false",
              "date": new_plan.time,
              "location_name": new_plan.location or "",
              "location_id": new_plan.location_id or "",
              "title": new_plan.title,
              "acontext": ACONTEXT,
          }
          j = self._post(self.req_url.PLAN_CHANGE, data, fix_request=True, as_json=True)
docs: Edits a plan
  
          :param plan: Plan to edit
          :param new_plan: New plan
          :type plan: models.Plan
          :raises: FBchatException if request failed