def _is_sequence_of_quadruples(obj):
    """ Assess if input object sequence has length of four.

        :param obj: object with __len__ attribute
        :type obj: list, tuple, dict
        :rtype: bool
    """

    ret = hasattr(obj, '__len__')
    if ret:
        ret = all(hasattr(item, '__len__') and len(item) == 4 for item in obj)

    return ret