Rasa 3.x learning series -rasa fallbackclassifier source code learning notes

Rasa 3.x Learning Series -Rasa FallbackClassifier Source learning notes

Fallback_classifier

rasa/nlu/classifiers/fallback_classifier.py

from __future__ import annotations
import copy
import logging
from typing import Any, List, Text, Dict, Type, Union, Tuple, Optional

from rasa.engine.graph import