Hey, I am using RAG system with

from llama_index.llms.azure_openai import AzureOpenAI
from llama_index.llms.azure_openai import AzureOpenAI
from llama_index.embeddings.azure_openai import AzureOpenAIEmbedding
from llama_index.core import VectorStoreIndex, SimpleDirectoryReader
from llama_index.vector_stores.chroma import ChromaVectorStore

from llama_index.core import StorageContext
import chromadb
import os
from llama_index.core import Settings



















 2 from llama_index.llms.azure_openai import AzureOpenAI
      3 from llama_index.llms.azure_openai import AzureOpenAI
      4 from llama_index.embeddings.azure_openai import AzureOpenAIEmbedding

File c:\Chat-bot\venv\lib\site-packages\llama_index\llms\azure_openai\__init__.py:1
----> 1 from llama_index.llms.azure_openai.base import (
      2     AzureOpenAI,
      3     SyncAzureOpenAI,
      4     AsyncAzureOpenAI,
      5 )
      7 __all__ = ["AzureOpenAI", "SyncAzureOpenAI", "AsyncAzureOpenAI"]

File c:\Chat-bot\venv\lib\site-packages\llama_index\llms\azure_openai\base.py:4
      1 from typing import Any, Callable, Dict, Optional, Sequence
      3 import httpx
----> 4 from llama_index.core.base.llms.types import ChatMessage
      5 from llama_index.core.bridge.pydantic import Field, PrivateAttr, root_validator
      6 from llama_index.core.callbacks import CallbackManager

File c:\Chat-bot\venv\lib\site-packages\llama_index\core\__init__.py:19
     15 from llama_index.core.embeddings.mock_embed_model import MockEmbedding
...
--> 169     raise TypeError(f"Plain {arg} is not valid as type argument")
    170 if isinstance(arg, (type, TypeVar, ForwardRef, types.UnionType, ParamSpec)):
    171     return arg

TypeError: Plain typing.TypeAlias is not valid as type argument