import * as admin from "firebase-admin";
import { FirestoreField } from "../../firestore-onwrite-processor/types";
export type Metadata = {
    collectionName: string;
    instanceId?: string;
    createdAt: admin.firestore.Timestamp;
    [key: string]: FirestoreField;
};
export declare const getMetadataDoc: (metadataDocumentPath: string, metadata: Metadata) => Promise<admin.firestore.DocumentSnapshot<admin.firestore.DocumentData, admin.firestore.DocumentData>>;
export declare const createMetadataDoc: (metadataDocumentPath: string, metadata: Metadata) => Promise<admin.firestore.DocumentReference<admin.firestore.DocumentData, admin.firestore.DocumentData>>;
export declare const updateMetadataDoc: (metadataDocumentPath: string, metadata: Metadata) => Promise<admin.firestore.DocumentReference<admin.firestore.DocumentData, admin.firestore.DocumentData>>;
export declare const updateOrCreateMetadataDoc: (metadataDocumentPath: string, shouldRunBackfill: (data?: Record<string, FirestoreField>) => Promise<boolean>, metadata: Metadata) => Promise<{
    path: string;
    shouldBackfill: boolean;
}>;