def relative_done
import bend-collections@1.0.0.0/src/containers/doubly_linked_list.bend as DoublyLinkedListimport Base
import bend-collections@1.0.0.0/src/containers/types/doubly_linked_list.bend as E
104def relative_done(~T: Data, r: DList<T> & E.Handle) -> DList<T> & E.Obs<T>:
105 (s, h) = r
106 (s, E.OInsert{Done{h}})