pub unsafe extern "C" fn tracker_sparql_cursor_next(
cursor: *mut TrackerSparqlCursor,
cancellable: *mut GCancellable,
error: *mut *mut GError,
) -> gbooleanpub unsafe extern "C" fn tracker_sparql_cursor_next(
cursor: *mut TrackerSparqlCursor,
cancellable: *mut GCancellable,
error: *mut *mut GError,
) -> gboolean