def bucket_read_api(mcg_obj, bucket_name):
    """
    Fetches the bucket metadata like size, tiers etc

    Args:
        mcg_obj (obj): MCG object
        bucket_name (str): Name of the bucket

    Returns:
        dict : Bucket policy response

    """
    resp = mcg_obj.send_rpc_query(
        "bucket_api", "read_bucket", params={"name": bucket_name}
    )
    bucket_read_resp = resp.json().get("reply")
    return bucket_read_resp