import { TesterEvent } from "./base";
export declare abstract class EventWithHoldAdapter<T> extends TesterEvent {
    protected abstract register(handler: (data: T) => void): unknown;
    protected abstract deregister(handle: unknown): void;
    protected processTrigger(data: T): boolean;
    protected processHold(data: T): void;
    protected get hasTrigger(): boolean;
    protected get hasHold(): boolean;
    makePromise(): {
        triggerPromise: Promise<unknown>;
        holdingListener: {
            holdingPromise: Promise<unknown>;
            terminateHold: () => void;
        };
    };
}
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