add auth parameter and AzureAuth

[kristapratico]

• I understand that this repository is auto-generated and my pull request may not be merged

Changes being requested

Example usages:

from openai import OpenAI, AzureAuth
from azure.identity import get_bearer_token_provider, DefaultAzureCredential

token_provider = get_bearer_token_provider(DefaultAzureCredential(), "https://cognitiveservices.azure.com/.default")

client = OpenAI(
    base_url="https://resource.openai.azure.com/openai/v1",
    auth=AzureAuth(token_provider=token_provider),
    default_query={"api-version": "preview"}
)

from openai import OpenAI, AzureAuth
from azure.identity import DefaultAzureCredential

client = OpenAI(
    base_url="https://resource.openai.azure.com/openai/v1",
    auth=AzureAuth(credential=DefaultAzureCredential()),
    default_query={"api-version": "preview"}
)

Additional context & links

[johanste]

Nitpick, parameters of type list[str] need to be checked correct type passed in. You will get very unexpected results if you accidentally pass in a str.

[johanste]

The AzureAsyncAuth instance needs to cache the bearer token provider.

[johanste]

We need to cache this on self.