def ns_grow_keys
import bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend as BalancedSearchTreeimport Base
534def ns_grow_keys(~K: Data, +depth: Nat, a: Array<Maybe<&2, K>>) -> Array<Maybe<&2, K>>:
535 ANode{a, ns_nokeys(~K, depth)}