Looking for a Built-in Data Structure Similar to EntityStore in TypeScript

export class EntityStore<
  T extends Record<string | symbol, unknown> = Record<string | symbol, unknown>,
  Id extends string | symbol = string | symbol
> {
  public readonly allIds: Id[] = [];
  public readonly byId: Record<Id, T> = {} as Record<Id, T>;

  static add<T extends EntityStore>(
    store: T,
    entity: T,
    id: T["allIds"][number]
  ) {
    return {
      allIds: Array.append(store.allIds, id),
      byId: Record.set(store.byId, id, entity),
    };
  }

  static remove<T extends EntityStore>(store: T, id: T["allIds"][number]) {
    return {
      allIds: Array.filter(store.allIds, (i) => i !== id),
      byId: Record.remove(store.byId, id),
    };
  }

  static update<T extends EntityStore>(
    store: T,
    id: T["allIds"][number],
    entity: Partial<T>
  ) {
    return {
      allIds: store.allIds,
      byId: Record.modify(store.byId, id, (e) => ({ ...e, ...entity })),
    };
  }
}

export class EntityStore<
  T extends Record<string | symbol, unknown> = Record<string | symbol, unknown>,
  Id extends string | symbol = string | symbol
> {
  public readonly allIds: Id[] = [];
  public readonly byId: Record<Id, T> = {} as Record<Id, T>;

  static add<T extends EntityStore>(
    store: T,
    entity: T,
    id: T["allIds"][number]
  ) {
    return {
      allIds: Array.append(store.allIds, id),
      byId: Record.set(store.byId, id, entity),
    };
  }

  static remove<T extends EntityStore>(store: T, id: T["allIds"][number]) {
    return {
      allIds: Array.filter(store.allIds, (i) => i !== id),
      byId: Record.remove(store.byId, id),
    };
  }

  static update<T extends EntityStore>(
    store: T,
    id: T["allIds"][number],
    entity: Partial<T>
  ) {
    return {
      allIds: store.allIds,
      byId: Record.modify(store.byId, id, (e) => ({ ...e, ...entity })),
    };
  }
}