/** Constructor for `Cancel` instances. */
interface CancelConstructor {
    prototype: Cancel;
    /**
     * Creates a Cancel instance.
     * Can be called as a function or with `new`.
     *
     * @param message the cancellation message
     */
    (message?: string): Cancel;
    /**
     * Creates a Cancel instance.
     * Can be called as a function or with `new`.
     *
     * @param message the cancellation message
     */
    new (message?: string): Cancel;
}
/**
 * Represents cancellation errors.
 */
interface Cancel {
    /** Error name is `AbortError` for compatibility with JavaScript's AbortSignal handling. */
    name: "AbortError";
    /** User defined message. */
    message: string | undefined;
    /** `cancelled` is always true for instances of `Cancel`. */
    cancelled: true;
    /** Returns `"Cancel: <message>"` */
    toString(): string;
}
/**
 * Creates a Cancel instance.
 * Can be called as a function or with `new`.
 *
 * @param message the cancellation message
 */
declare const Cancel: CancelConstructor;

/**
 * Returns true if the given error represents a cancellation error.
 * This is the case if it is either an instance of `Cancel` or
 * a plain error with name `AbortError`.
 */
declare function isCancellationError(error: any): boolean;

export { Cancel, Cancel as default, isCancellationError };
export type { CancelConstructor };