(VikDataSourceCheckExistenceFunc) NULL,
(VikDataSourceAddSetupWidgetsFunc) datasource_google_add_setup_widgets,
(VikDataSourceGetCmdStringFunc) datasource_google_get_cmd_string,
(VikDataSourceCheckExistenceFunc) NULL,
(VikDataSourceAddSetupWidgetsFunc) datasource_google_add_setup_widgets,
(VikDataSourceGetCmdStringFunc) datasource_google_get_cmd_string,