import type Token from './token.js';
export default class TokenCollection<T = Token> extends Set<T> {
    find(callback: (token: T) => boolean): T | undefined;
    filter(callback: (token: T) => boolean): TokenCollection<T>;
    map<U>(callback: (token: T) => U): TokenCollection<U>;
    some(callback: (token: T) => boolean): boolean;
    every(callback: (token: T) => boolean): boolean;
}