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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def rowsAfterValue(self, value, count):
 """ Retrieve some rows at or after a given sort-column value. @param value: Starting value in the index for the current sort column at which to start returning results. Rows with a column value for the current sort column which is greater than or equal to this value will be returned. @type value: Some type compatible with the current sort column, or None, to specify the beginning of the data. @param count: The maximum number of rows to return. @type count: C{int} @return: A list of row data, ordered by the current sort column, beginning at C{value} and containing at most C{count} elements. """

        if value is None:
            query = self.inequalityQuery(None, count, True)
        else:
            pyvalue = self._toComparableValue(value)
            currentSortAttribute = self.currentSortColumn.sortAttribute()
            query = self.inequalityQuery(currentSortAttribute >= pyvalue, count, True)
        return self.constructRows(query)