@staticmethod
def sort(df, column, ascending=False):
    """
        Returns a new :class:`DataFrame` sorted by the specified column(s).

        :param cols: list of :class:`Column` or column names to sort by.
        :param ascending: boolean or list of boolean (default True).
            Sort ascending vs. descending. Specify list for multiple sort orders.
            If a list is specified, length of the list must equal length of the `cols`.
        """
    return df.sort(column, ascending=ascending)
