def METHOD_NAME(self):
    """The columns that should be sorted, and the direction to sort.
    A sort configuration is a `list` of two elements: a string column name,
    and a string sort direction, which are:  "none", "asc", "desc",
    "col asc", "col desc", "asc abs", "desc abs", "col asc abs", and
    "col desc abs".
    Returns:
        `list`: the sort configurations of the view stored in a `list` of
            `list`s
    """
    return self._sort