HYTOS

        if matches:

            return self.attrs[matches[0]]

    @property

    def case(self):

        if matches:

            return self.attrs[matches[0]]

    '''

    @stream_no.setter

            """calculate attribute value for HMB type"""

            matches = [_attr for _attr in _attrs if _attr.Attribute.upper() == 'STREAM NO']

            hmb_attrs = [_attr for _attr in targetAttrs if _attr.AttributeType == 'HMB']

            hmb_datas = app_doc_data.get_hmb_data(None) if hmb_attrs else None

            if hmb_datas and hmb_attrs and matches and _attrs[matches[0]] and _attrs[matches[0]] != 'None':

                matches = [hmb_data for hmb_data in hmb_datas if hmb_data.stream_no == stream_no]

                if matches:

                    data = {}

                    hmb_data = matches[0]

                    data = QItemDataExportDialog.make_hmb_data(data, hmb_data, names)

                    for _attr in hmb_attrs: