export type PeerMeta = {
    optional?: boolean;
};
export type PackageRanges = Record<string, string>;
export interface PackageCache {
    getPinnedExact(name: string, range: string): Promise<string | undefined>;
    setPinnedExact(name: string, range: string, exact: string): Promise<unknown>;
    getIndex(name: string): Promise<{
        versions: string[];
        distTags?: Record<string, string>;
        updatedAt: number;
    } | undefined>;
    setIndex(name: string, versions: string[], distTags?: Record<string, string>): Promise<unknown>;
    invalidateVersionsCache(name: string): Promise<unknown>;
    isNegative(name: string): Promise<boolean>;
    recordNegative(name: string): Promise<unknown>;
    clearNegative(name: string): Promise<unknown>;
    getMeta(name: string, version: string): Promise<{
        dependencies?: Record<string, string>;
        peerDependencies?: Record<string, string>;
        peerDependenciesMeta?: Record<string, PeerMeta>;
        updatedAt: number;
    } | undefined>;
    setMeta(name: string, version: string, dependencies?: Record<string, string>, peerDependencies?: Record<string, string>, peerDependenciesMeta?: Record<string, PeerMeta>): Promise<unknown>;
}
export interface HttpClient {
    getJson<T>(url: string): Promise<T | undefined>;
    head(url: string): Promise<{
        ok: boolean;
        url: string;
    } | undefined>;
}
//# sourceMappingURL=types.d.ts.map