/**
 * Parse a TSV file in a format similar to shared-parameter-datasets.tsv
 * with one line per Thingpedia query, pointing to a JSON file for each.
 */
export default class MultiJSONDatabase {
    private _filename;
    private _dirname;
    private _store;
    constructor(filename: string);
    load(): Promise<void>;
    get size(): number;
    has(key: string): boolean;
    get(key: string): Record<string, unknown>[] | undefined;
}