export interface MyCallback<Argument> {
    displayName?: string;
    (param: Argument): void | undefined | boolean;
}
export declare class CallbackList<Argument> {
    protected list: MyCallback<Argument>[];
    add(item: MyCallback<Argument>, name?: string): number;
    remove(item: MyCallback<Argument>): MyCallback<Argument>[];
    run(argument: Argument): boolean;
}