Issues with the DialogueStateTracker

Hello fellow Rasarians,

I am trying to use the DialogueStateTracker to save a conversation in a story file. This is my custom action: from typing import Any, Text, Dict, List

from rasa_sdk import Action, Tracker
from rasa_sdk.executor import CollectingDispatcher
from rasa_sdk.forms import FormAction
from import EventType, SlotSet, SessionStarted, ActionExecuted
from rasa.core.trackers import DialogueStateTracker
import calendar
import json
import os
import requests

def tag_convo(tracker: Tracker, label: Text) -> None:
    """Tag a conversation in Rasa X with a given label"""
    #config = os.environ.get("RASA_X_HOST", "rasa-x:5002")
    config = os.environ.get("RASA_X_HOST", "localhost:5002")
    endpoint = f"http://{config}/api/conversations/{tracker.sender_id}/tags", data=label)

class ActionTagFeedback(Action):
    """Tag a conversation in Rasa X as positive or negative feedback, save the positive Story. Negative Stories should be reviewed. """

    def name(self):
        return "action_tag_feedback"

    def run(self, dispatcher, tracker, domain) -> List[EventType]:

        feedback = tracker.get_slot("sentiment")

        if feedback == "pos":
            label = '[{"value":"postive feedback","color":"76af3d"}]'
            DST = DialogueStateTracker(, [])
        elif feedback == "neg":
            label = '[{"value":"negative feedback","color":"ff0000"}]'
        	return []
        tag_convo(tracker, label)
        return []

Note the empty list in the DST initialization: Normally I would replace it with tracker.slots, however this gives me the following error: AttributeError: 'str' object has no attribute 'name'

With an empty list it does write to my stories file, but in contrary to what it says in the documentation this is not the Rasa Core Story Format:

## [{'event': 'action', 'timestamp': 1596724178.0415614, 'name': 'action_session_start', 'policy': None, 'confidence': None}, {'event': 'bot', 'timestamp': 1596724178.0415614, 'text': 'Welcome, my name is MindBot. Before we start, would you be so kind to tell me your user ID from the survey?', 'data': {'elements': None, 'quick_replies': None, 'buttons': None, 'attachment': None, 'image': None, 'custom': None}, 'metadata': {}}, ..... {'event': 'slot', 'timestamp': 1596724185.9846926, 'name': 'sentiment', 'value': 'pos'}] (shortened because way too long)

Is this a bug in the DialogStateTracker or am I doing something wrong?