import { NonLeafTree } from "https://deno.land/x/rimbu@1.0.2/list/custom/index.ts";
Parameters
left: NonLeafBlock<T2, C2>
right: NonLeafBlock<T2, C2>
middle: NonLeaf<T2, NonLeafBlock<T2, C2>> | null
import { NonLeafTree } from "https://deno.land/x/rimbu@1.0.2/list/custom/index.ts";