import type { VersionSource } from "./types.js";
export type FetchImpl = typeof fetch;
export interface GithubReleasesOptions {
    allowPrerelease?: boolean;
    /** Strip a prefix from tag_name before returning, e.g. "v" → "1.2.3". */
    tagPrefix?: string;
    /** GitHub personal access token (Authorization: Bearer …) for higher rate limit. */
    token?: string;
    /** Override fetch for tests. Defaults to globalThis.fetch. */
    fetchImpl?: FetchImpl;
    /** Per-request timeout in ms. Default 10000. */
    timeoutMs?: number;
}
/**
 * Version source backed by the GitHub releases REST API. Fetches the
 * 5 most recent releases, filters drafts and (optionally) prereleases,
 * and returns the newest stable tag_name. Strips an optional prefix
 * (typically "v") so the result is comparable via compareVersions().
 */
export declare function githubReleases(repo: string, options?: GithubReleasesOptions): VersionSource;
export interface DockerHubTagsOptions {
    filter?: (tag: string) => boolean;
    fetchImpl?: FetchImpl;
    timeoutMs?: number;
}
/**
 * Version source backed by the Docker Hub v2 tags API. Returns the
 * first tag matching the filter (default: anything that parses as
 * a semver). Useful for images that don't have GitHub releases.
 */
export declare function dockerHubTags(image: string, options?: DockerHubTagsOptions): VersionSource;
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