export type LocateFs = {
    stat(target: string): Promise<{
        isFile(): boolean;
        isDirectory(): boolean;
    }>;
    realpath(target: string): Promise<string>;
    readFile(target: string): Promise<string>;
    readdir(target: string): Promise<string[]>;
};
export type CfLocation = {
    packageDir: string;
    /** Absolute path of the `bin.cf` entry script. */
    entry: string;
    packageVersion: string;
    source: 'cf-bin' | 'managed' | 'path' | 'pnpm' | 'volta';
    /**
     * The package lies inside the current working directory (warned about), which
     * may be a project's own cf. Never set for the managed install, which the CLI
     * installed and verified itself, nor when the working directory is the home
     * directory, where every global install (nvm, Volta, pnpm) lives.
     */
    insideCwd: boolean;
};
export declare function isNodeSupported(version?: string): boolean;
/** cf runs under this Node via process.execPath; workerd ships no win32-arm64 build. */
export declare function assertLocalRuntimeSupported(version?: string, platform?: NodeJS.Platform, arch?: string): void;
export declare function locateCf(options: {
    cfBin?: string;
    /** The verified managed cf package directory (`findManagedCf`), tried after `--cf-bin`. */
    managedDir?: string;
    env: NodeJS.ProcessEnv;
    platform?: NodeJS.Platform;
    cwd?: string;
    /** Defaults to HOME (USERPROFILE on Windows) from `env`, else the OS home directory. */
    home?: string;
    fs?: LocateFs;
}): Promise<CfLocation>;
export type CfVersionInfo = {
    version: string;
    tested: boolean;
};
/** Gate the version cf prints against its package.json and `CF_SUPPORTED`. */
export declare function checkCfVersion(printed: string, packageVersion: string): CfVersionInfo;