method ValuedGraphEmpty.prototype.modifyAtRe-exportimport { ValuedGraphEmpty } from "https://deno.land/x/rimbu@1.2.1/graph/custom/index.ts"; modifyAt(node1: N,node2: N,options: { ifNew?: OptLazyOr<V, Token>; ifExists?: (value: V, remove: Token) => V | Token; },): WithGraphValues<Tp, N, V>["normal"]Parametersnode1: Nnode2: Noptions: { ifNew?: OptLazyOr<V, Token>; ifExists?: (value: V, remove: Token) => V | Token; }ReturnsWithGraphValues<Tp, N, V>["normal"]