import { Db } from 'mongodb';
import { ObjectId } from 'bson';
import { AppConfig } from './config';
export declare class DataImporter {
    db: Db;
    log: (message: string) => void;
    constructor(db: Db, log: (message: string) => void);
    importData: (config: AppConfig) => Promise<void>;
    createCollectionIfShould: (collections: {
        name: string;
    }[], collectionName: string) => Promise<void>;
    insertDocuments: (collectionName: string, collectionPath: string, config: AppConfig) => Promise<void>;
    setProperDocumentId: (documents: {
        id: ObjectId;
    }[]) => {
        _id: ObjectId;
        id: ObjectId;
    }[];
}