import type { AltMatcherOptions, Checkpoint, Matcher } from '../types';
import { AbstractMatcher } from './abstract-matcher';
export declare class AltMatcher<Ctx> extends AbstractMatcher<Ctx> {
    readonly alts: Matcher<Ctx>[];
    private idx;
    private checkpoint;
    constructor({ matchers }: AltMatcherOptions<Ctx>);
    match(checkpoint: Checkpoint<Ctx>): Checkpoint<Ctx> | null;
    nextMatch(): Checkpoint<Ctx> | null;
}
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