import fs from 'node:fs';
export type FsLike = Pick<typeof fs, 'existsSync' | 'readdirSync'>;
export type WhichLike = {
    sync: (cmd: string) => string;
};
export type Deps = {
    fs?: FsLike;
    which?: WhichLike;
    env?: NodeJS.ProcessEnv;
    platform?: NodeJS.Platform;
    userhome?: (p: string) => string;
};
export default function locateChromium(allowFallbackOrDeps?: boolean | Deps, depsMaybe?: Deps): string | null;
export type InstallGuidanceStep = {
    summary: string;
    command: string;
};
export type InstallGuidanceOptions = {
    steps?: InstallGuidanceStep[];
};
export declare function getInstallGuidance(opts?: InstallGuidanceOptions): string;
export declare function locateChromiumOrExplain(options?: boolean | {
    allowFallback?: boolean;
}): string;
/**
 * Cross-platform Chromium version resolver.
 * - Never executes the browser by default.
 * - On Windows: reads PE metadata via PowerShell.
 * - On macOS: reads Info.plist next to the binary when using CfT layout (via cache or conventional install).
 * - On Linux/others: attempts to infer from Puppeteer cache folder; otherwise returns null unless allowExec is true.
 */
export declare function getChromiumVersion(bin: string, opts?: {
    allowExec?: boolean;
}): string | null;