code: def transform_collection_to_sentence(
      collection: Collection[Text],
  ) -> Text:
      """Transforms e.g. a list like ['A', 'B', 'C'] into a sentence 'A, B and C'."""
      x = list(collection)
      if len(x) >= 2:
          return ", ".join(map(str, x[:-1])) + " and " + x[-1]
      return "".join(collection)
  
imports: import asyncio
  import functools
  import importlib
  import inspect
  import logging
  from typing import Text, Dict, Optional, Any, List, Callable, Collection, Type
  from rasa.shared.exceptions import RasaException
label_desc: Use image node_id 7 for calling a global function with example usage: transform_collection_to_sentence(collection) and returns: str, unknown