def data(self, column, role):
        """Return the data for the column and role

        :param column: the data column
        :type column: int
        :param role: the data role
        :type role: QtCore.Qt.ItemDataRole
        :returns: data depending on the role
        :rtype:
        :raises: None
        """
        if self._data is not None and (column >= 0 or column < self._data.column_count()):
            return self._data.data(column, role)
Return the data for the column and role

        :param column: the data column
        :type column: int
        :param role: the data role
        :type role: QtCore.Qt.ItemDataRole
        :returns: data depending on the role
        :rtype:
        :raises: None