/** The npm dist tags (tag -> version) published for `pkg`. */
export declare function npmDistTags(pkg: string): Promise<Record<string, string>>;
/**
* Install one or more packages pinned to exact versions in a single `npm install`,
* A no-op when `specs` is empty.
*/
export declare function npmInstall(specs: ReadonlyArray<{
	pkg: string
	version: string
}>): Promise<void>;
