def METHOD_NAME(
    provider_name: str,
    tokens: dict[str, str],
) -> None:
    """
    Update the access/refresh tokens for a provider in the Airflow Variable store.
    This update does not affect the tokens for any other existing providers.
    """
    log.info(f"Updating tokens for provider: {provider_name}")
    current_tokens = _var_get(OAUTH2_TOKEN_KEY)
    current_tokens[provider_name] = {
        "access_token": tokens["access_token"],
        "refresh_token": tokens["refresh_token"],
    }
    Variable.set(OAUTH2_TOKEN_KEY, current_tokens, serialize_json=True)