/**
 * Copyright © 2023 Nevis Security AG. All rights reserved.
 */
/**
 * The interface that operation or user interaction handlers are derived from.
 *
 * @group User Interaction
 */
export declare abstract class CancellableHandler {
    /**
     * This method should be invoked if the operation must be canceled.
     */
    abstract cancel(): Promise<void>;
}
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