class NestedInteger extends Array<NestedInteger>import { NestedInteger } from "https://deno.land/x/masx200_leetcode_test@8.1.5/mini-parser/NestedInteger.ts"; ConstructorsnewNestedInteger(value?: number)Index Signatures[k: number]: NestedIntegerMethodsadd(elem: NestedInteger)getInteger(): number | nullgetList(): NestedInteger[]isInteger(): booleansetInteger(value: number)toJSON(): NestedIntegerJSONvalueOf()[Symbol.iterator]()