export type PriorityRegistration<TListener, TOptions extends {
    priority: number;
}> = Readonly<TOptions & {
    listener: TListener;
    order: number;
}>;
declare abstract class CopyOnWriteRegistry<TValue> {
    #private;
    protected getItems(): readonly TValue[];
    protected setItems(items: readonly TValue[]): void;
    protected removeItem(value: TValue): boolean;
    has(): boolean;
    clear(): void;
}
export declare class OrderedRegistry<TValue> extends CopyOnWriteRegistry<TValue> {
    append(value: TValue): () => void;
    prepend(value: TValue): () => void;
    remove(value: TValue): boolean;
    values(): readonly TValue[];
}
export declare class PriorityRegistry<TListener, TOptions extends {
    priority: number;
}> extends CopyOnWriteRegistry<PriorityRegistration<TListener, TOptions>> {
    #private;
    register(listener: TListener, options: TOptions): () => void;
    entries(): readonly PriorityRegistration<TListener, TOptions>[];
}
export {};