import { type LockfilePackage } from './lockfile.js';
export declare const NPM_LOCKFILE = "package-lock.json";
export interface PackageLockEntry {
    name?: string;
    version?: string;
}
export interface PackageLockFile {
    lockfileVersion?: number;
    packages?: Record<string, PackageLockEntry>;
}
export interface ReadNpmPackageLockAtRefOptions {
    projectRoot: string;
    ref: string;
    lockfilePath?: string;
}
export declare class UnsupportedLockfileError extends Error {
    constructor(lockfilePath: string);
}
export declare function assertSupportedNpmLockfile(lockfilePath: string): void;
export declare function parseNpmPackageLock(raw: string, sourceLabel?: string): PackageLockFile;
export declare function readNpmPackageLockAtRef(options: ReadNpmPackageLockAtRefOptions): Promise<PackageLockFile>;
export declare function packageNameFromNpmLockPath(lockPath: string): string | null;
export declare function collectPackagesFromNpmLock(lock: PackageLockFile): LockfilePackage[];
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