/**
 * Base class for custom errors that may occur during execution of a test scenario.
 *
 * ## Defining a custom error
 *
 * ```ts
 * import { RuntimeError } from '@serenity-js/core'
 *
 * export class CustomError extends RuntimeError {
 *   constructor(message: string, cause?: Error) {
 *       super(CustomError, message, cause);
 *   }
 * }
 * ```
 *
 * ## Wrapping a sync error
 *
 * ```ts
 * try {
 *     operationThatMightThrowAnError();
 * } catch(error) {
 *     // catch and re-throw
 *     throw new CustomError('operationThatMightThrowAnError has failed', error);
 * }
 * ```
 *
 * ## Wrapping an async error
 *
 * ```ts
 * operationThatMightRejectAPromise()
 *   .catch(error => {
 *     // catch and re-throw
 *     throw new CustomError('operationThatMightThrowAnError has failed', error)
 *   })
 * ```
 *
 * ## Registering a custom error with [`ErrorSerialiser`](https://serenity-js.org/api/core/class/ErrorSerialiser/)
 *
 * ```ts
 * import { RuntimeError } from '@serenity-js/core'
 * import { ErrorSerialiser } from '@serenity-js/core/io'
 *
 * export class CustomError extends RuntimeError {
 *
 *    static fromJSON(serialised: JSONObject): CustomError {
 *         const error = new CustomError(
 *             serialised.message as string,
 *             ErrorSerialiser.deserialise(serialised.cause as string | undefined),
 *         );
 *
 *         error.stack = serialised.stack as string;
 *
 *         return error;
 *     }
 *
 *   constructor(message: string, cause?: Error) {
 *       super(CustomError, message, cause);
 *   }
 * }
 *
 * ErrorSerialiser.registerErrorTypes(CustomError)
 * ```
 *
 * @group Errors
 */
export declare abstract class RuntimeError extends Error {
    readonly cause?: Error;
    /**
     * Symbol used to brand RuntimeError instances for cross-module instanceof checks.
     * This addresses the dual-package hazard where the same class loaded from
     * both ESM and CJS creates distinct constructor functions.
     */
    private static readonly TYPE_BRAND;
    /**
     * Custom instanceof check that works across module boundaries.
     * This addresses the dual-package hazard where the same class loaded from
     * both ESM and CJS creates distinct constructor functions.
     *
     * The check walks up the prototype chain of the instance and compares
     * constructor names, which remain consistent across module boundaries.
     */
    static [Symbol.hasInstance](instance: unknown): boolean;
    /**
     * @param type - Constructor function used to instantiate a subclass of a RuntimeError
     * @param message - Human-readable description of the error
     * @param [cause] - The root cause of this [`RuntimeError`](https://serenity-js.org/api/core/class/RuntimeError/), if any
     */
    protected constructor(type: new (...args: any[]) => RuntimeError, message: string, cause?: Error);
    /**
     * Human-readable description of the error
     */
    toString(): string;
    toJSON(): object;
}
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