import Nedb from 'nedb';
import { Hit } from '../interfaces/hit';
/**
 * Proprietary interface with NeDB<Hit>
 * @see {@link https://github.com/louischatriot/nedb|Nedb}
 */
export declare class Report extends Nedb<Hit> {
    /**
     * constructor.
     * @param {string | Nedb.DataStoreOptions} [pathOrOptions] - NeDB options
     */
    constructor(pathOrOptions?: string | Nedb.DataStoreOptions);
    /**
     * @callback insertionCallback
     * @param {(Error | null)} error
     * @param {Hit[]} documents
     * @return {void}
     */
    /**
     * Insert a new hit (array) in the database.
     * Emits a 'hit' event containing the inserted data.
     * Emits an 'error' event if an error occurred during insertion.
     * @param {T} newDocs
     * @param {insertionCallback} cb
     */
    insert<T extends Hit>(newDocs: T | T[], cb?: (err: (Error | null), documents: T[]) => void): void;
}