export type MyCallback<Argument extends unknown[]> = (...param: Argument) => boolean | undefined | void;
/**
 * Manage a list of callback
 */
export declare class CallbackList<Argument extends unknown[]> {
    protected list: MyCallback<Argument>[];
    protected running: boolean;
    constructor(initial?: readonly MyCallback<Argument>[]);
    count(): number;
    /**
     * remove all callback
     */
    reset(): void;
    /**
     * @param name optional name of `item` (will assign displayName to `item`)
     * @returns function list length
     */
    add(item: MyCallback<Argument>, name?: string): number;
    /**
     * @returns if removed: return `item`; if did not exists: return null
     */
    remove(item: MyCallback<Argument>): null | MyCallback<Argument>;
    /**
     * in a callback, return false (not 0 or other falsy value) to stop execute
     * @returns {boolean} true if every callback called, false if stop in middle
     */
    run(...argument: Argument): boolean;
}
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