export declare function readText(file: string): Promise<string | undefined>;
/** The nearest directory at or above `start` that holds a `.git` entry (a checkout or a worktree), if any. */
export declare function repositoryRoot(start: string): Promise<string | undefined>;
/**
 * Directories that may hold the lockfile (or the hoisted `node_modules`) for the package in `packageDir`: every
 * ancestor up to the scan root, then — when the scan root sits inside a repository (`--path` into a workspace
 * monorepo) — on up to that repository's root, where Yarn/npm/pnpm workspaces keep the one lockfile.
 */
export declare function lockfileDirectories(packageDir: string, root: string): Promise<string[]>;
export interface LockedVersion {
    version: string;
    /** The lockfile's base name, for evidence text. */
    lockfile: 'package-lock.json' | 'pnpm-lock.yaml' | 'yarn.lock';
    /**
     * The package actually installed under the dependency's name when it differs — an `npm:` alias such as
     * `"react-native-iap": "npm:@fork/react-native-iap@^12"`. The version is then that package's, not `name`'s.
     */
    aliasOf?: string;
}
/** The version a lockfile in `lockDir` resolved for dependency `name` (declared as `declared`) of the package in `packageDir`. */
export declare function lockedPackageVersion(name: string, packageDir: string, lockDir: string, declared: string): Promise<LockedVersion | undefined>;