lib/graph: add +get-keys
^- update-log:store
%+ scry-for update-log:store
/update-log-subset/(scot %p entity.res)/[name.res]/(scot %da start)/'~'
+::
+++ get-keys
+ ^- resources
+ =+ %+ scry-for ,=update:store
+ /keys
+ ?> ?=(%0 -.update)
+ ?> ?=(%keys -.q.update)
+ resources.q.update
--
