/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
import type { PluginOptions, VcsConfig } from '@docusaurus/types';
export type LastUpdateData = {
    /**
     * A timestamp in **milliseconds**, usually read from `git log`
     * `undefined`: not read
     * `null`: no value to read (usual for untracked files)
     */
    lastUpdatedAt: number | undefined | null;
    /**
     * The author's name, usually coming from `git log`
     * `undefined`: not read
     * `null`: no value to read (usual for untracked files)
     */
    lastUpdatedBy: string | undefined | null;
};
type LastUpdateOptions = Pick<PluginOptions, 'showLastUpdateAuthor' | 'showLastUpdateTime'>;
export type FrontMatterLastUpdate = {
    author?: string;
    /**
     * Date can be any
     * [parsable date string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse).
     */
    date?: Date | string;
};
export declare function readLastUpdateData(filePath: string, options: LastUpdateOptions, lastUpdateFrontMatter: FrontMatterLastUpdate | undefined, vcsParam: Pick<VcsConfig, 'getFileLastUpdateInfo'>): Promise<LastUpdateData>;
export {};
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