def _raw_object_serialize(obj):
    """
    Unsafe serializer of raw object's content using `repr`.

    This intended to be used internally by `ETagger` class, when no serializer
    is provided.
    """
    d = obj.as_dict(check_permissions=False)
    for k in sorted(d.keys()):
        yield k
        yield ':'
        yield repr(d[k])
