或者，您可以使用我在我的环境中复制的客户端凭据流，下面是我的预期结果：
对于OAuth2.0身份验证，您需要客户端密钥客户端ID和租户ID，通过它们您可以获取令牌，一旦获得令牌，可以像下面这样访问函数：
要获取以下凭据，您需要在应用程序注册中创建一个应用程序：

__init__.py :

import os
import azure.functions as func
from msal import ConfidentialClientApplication

# Azure AD settings
tenantid2 = "72f988bf"
clientid2 = "74230c16"
clientsecret2 = "IGj8Q~Iff"
rithscope = "https://analysis.windows.net/powerbi/api/.default" 

def get_token_rith():
    authority = f"https://login.microsoftonline.com/{tenantid2}"
    app = ConfidentialClientApplication(
        clientid2,
        authority=authority,
        client_credential=clientsecret2
    )
    token_response = app.acquire_token_for_client(scopes=[rithscope])
    return token_response['access_token']

def main(req: func.HttpRequest) -> func.HttpResponse:
    access_token1 = get_token_rith()
    return func.HttpResponse(f"Hello Rithwik, Authentication Successfull: {access_token1}")

requirements.txt:

Output: