import type { Node } from "unist";
import { JsonObject } from "./types.js";
import { Db } from "./db.js";
import { BrainDBOptionsIn } from "./index.js";
export declare const emptyAst: {};
export declare function addDocument(db: Db, idPath: string, cfg: BrainDBOptionsIn, revision: number): Promise<void>;
export declare function getFrontmatter(ast: Node): JsonObject;