iface->get_justification = g_sheet_uniform_column_get_justification;
iface->get_column_count = g_sheet_uniform_column_get_column_count;
iface->get_button_label = g_sheet_uniform_column_get_button_label;
iface->get_justification = g_sheet_uniform_column_get_justification;
iface->get_column_count = g_sheet_uniform_column_get_column_count;
iface->get_button_label = g_sheet_uniform_column_get_button_label;