def _is_si_object(storage_instance):
    """
    Helper method for determining if a storage instance is object.
    Args:
        storage_instance:

    Returns: (Bool) True if object, False if not.
    """
    si_type = storage_instance.get("service_configuration", None)
    if si_type is None:
        # object not supported on storage instance
        return False
    elif si_type == "object":
        return True
    else:
        return False