def ns_pop_fin
import bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend as BalancedSearchTreeimport Base
import bend-collections@1.0.0.0/src/containers/types/dynamic_array.bend as DE
765def ns_pop_fin(~K: Data, +m: Nat, r: NodeStore<K> & Result<&2, &2, DE.Error, Node<K>>) -> NodeStore<K> & Result<&2, &2, DE.Error, Node<K>>:
766 (s, x) = r
767 (ns_drop(~K, s, m), x)