external atom Node id "tree:node";
import interface TreeData;
package TreeRuntime id "tree:runtime" revision "tree:runtime@1" {
  operation reparent id "tree:runtime:reparent" : optional<interface-ref<TreeData>> -> unit
  mode call execution transaction targets [browser, server] receiver atom Node requires {
    edge parent id "tree:move:parent" : optional-one interface TreeData [resolve, connect, disconnect];
  } accept using check;
  operation check id "tree:runtime:check" : optional<interface-ref<TreeData>> -> unit
  mode call execution snapshot targets [server] receiver atom Node requires {
    edge current id "tree:check:current" : optional-one interface TreeData [resolve];
    interface ancestors id "tree:check:ancestors" : TreeData using [parent.resolve] from input;
  };
}