import { NonLeafTree } from "https://deno.land/x/rimbu@1.0.4/list/custom/index.ts";
Parameters
child: NonLeafBlock<T, C>
Returns
NonLeaf<T, NonLeafBlock<T, C>>
x/rimbu/list/custom/index.ts>NonLeafTree#prependMiddle
import { NonLeafTree } from "https://deno.land/x/rimbu@1.0.4/list/custom/index.ts";