def rotate_left_1
import bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend as BalancedSearchTreeimport Base
1165def rotate_left_1(~K: Data, ~V: Data, ~cmp: K -> K -> Cmp, +x: Nat, pair_result: TreeMap<K, V, cmp> & Node<K>) -> TreeMap<K, V, cmp>:
1166 (m1, +xn) = pair_result
1167 rotate_left_2(~K, ~V, ~cmp, x, xn, read(~K, ~V, ~cmp, m1, node_right(~K, xn)))