export interface SerializedException {
    message: string;
    code: string;
    stack?: string;
    cause?: string;
    metadata?: unknown;
}
/**
 * Base class for custom exceptions.
 *
 * @abstract
 * @class ExceptionBase
 * @extends {Error}
 */
export declare abstract class ExceptionBase extends Error {
    readonly message: string;
    readonly cause?: Error;
    readonly metadata?: unknown;
    abstract code: string;
    /**
     * @param {string} message
     * @param {ObjectLiteral} [metadata={}]
     * **BE CAREFUL** not to include sensitive info in 'metadata'
     * to prevent leaks since all exception's data will end up
     * in application's log files. Only include non-sensitive
     * info that may help with debugging.
     */
    constructor(message: string, cause?: Error, metadata?: unknown);
    /**
     * By default in NodeJS Error objects are not
     * serialized properly when sending plain objects
     * to external processes. This method is a workaround.
     * Keep in mind not to return a stack trace to user when in production.
     * https://iaincollins.medium.com/error-handling-in-javascript-a6172ccdf9af
     */
    toJSON(): SerializedException;
}
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