def METHOD_NAME(bucket, access_key_id, access_key_secret, end_point):
    oss_bucket = oss2.Bucket(
        auth=oss2.Auth(
            access_key_id=access_key_id, access_key_secret=access_key_secret
        ),
        endpoint=end_point,
        bucket_name=bucket,
        connect_timeout=_oss_time_out,
    )
    return oss_bucket