method OrderedMapNonEmpty.prototype.modifyAtRe-exportimport { OrderedMapNonEmpty } from "https://deno.land/x/rimbu@1.2.0/ordered/map-custom/index.ts"; modifyAt(key: K, options: { ifNew?: OptLazyOr<V, Token>; ifExists?: (currentValue: V, remove: Token) => V | Token; }): TpG["normal"]Parameterskey: Koptions: { ifNew?: OptLazyOr<V, Token>; ifExists?: (currentValue: V, remove: Token) => V | Token; }ReturnsTpG["normal"]