export = OError;
/**
 * Light-weight helpers for handling JavaScript Errors in node.js and the
 * browser.
 */
declare class OError extends Error {
    /**
     * @param {string} message as for built-in Error
     * @param {Object} [info] extra data to attach to the error
     * @param {Error} [cause] the internal error that caused this error
     */
    constructor(message: string, info?: any, cause?: Error);
    info: any;
    cause: Error;
    /** @private @type {Array<TaggedError> | undefined} */
    private _oErrorTags;
    /**
     * Set the extra info object for this error.
     *
     * @param {Object} info extra data to attach to the error
     * @return {this}
     */
    withInfo(info: any): OError;
    /**
     * Wrap the given error, which caused this error.
     *
     * @param {Error} cause the internal error that caused this error
     * @return {this}
     */
    withCause(cause: Error): OError;
}
declare namespace OError {
    /**
     * Tag debugging information onto any error (whether an OError or not) and
     * return it.
     *
     * @example <caption>An error in a callback</caption>
     * function findUser(name, callback) {
     *   fs.readFile('/etc/passwd', (err, data) => {
     *     if (err) return callback(OError.tag(err, 'failed to read passwd'))
     *     // ...
     *   })
     * }
     *
     * @example <caption>A possible error in a callback</caption>
     * function cleanup(callback) {
     *   fs.unlink('/tmp/scratch', (err) => callback(err && OError.tag(err)))
     * }
     *
     * @example <caption>An error with async/await</caption>
     * async function cleanup() {
     *   try {
     *     await fs.promises.unlink('/tmp/scratch')
     *   } catch (err) {
     *     throw OError.tag(err, 'failed to remove scratch file')
     *   }
     * }
     *
     * @param {Error} error the error to tag
     * @param {string} [message] message with which to tag `error`
     * @param {Object} [info] extra data with wich to tag `error`
     * @return {Error} the modified `error` argument
     */
    export function tag(error: Error, message?: string, info?: any): Error;
    /**
     * The merged info from any `tag`s and causes on the given error.
     *
     * If an info property is repeated, the last one wins.
     *
     * @param {Error | null | undefined} error any error (may or may not be an `OError`)
     * @return {Object}
     */
    export function getFullInfo(error: Error): any;
    /**
     * Return the `stack` property from `error`, including the `stack`s for any
     * tagged errors added with `OError.tag` and for any `cause`s.
     *
     * @param {Error | null | undefined} error any error (may or may not be an `OError`)
     * @return {string}
     */
    export function getFullStack(error: Error): string;
    export const maxTags: Number;
}