import type { SemVer } from 'semver';
import type { Hash } from './hash';
import type { Tag } from './tag';
export declare class TagMap extends Map<SemVer, Tag> {
    /**
     * get snap by hash.
     */
    byHash(hash: Hash): Tag | undefined;
    /**
     * e.g.
     * {
     *   alpha: '1.0.0-alpha.5',
     *   dev: '2.2.4-dev.37
     * }
     */
    getPreReleaseLatestTags(): {
        [preRelease: string]: string;
    };
    /**
     * Get a map that map snap hash to tag
     */
    getHashMap(): Map<Hash, Tag>;
    /**
     * get the latest semver from the tag map.
     */
    getLatest(): string;
    isEmpty(): boolean;
    /**
     * get an array of all tags.
     */
    toArray(): Tag[];
    byVersion(version: string): Tag | undefined;
    static fromArray(tags: Tag[]): TagMap;
    static empty(): TagMap;
}