export function handleNoRefImage(currImg: any, refImg: any, state: any, { emitter }: {
    emitter: any;
}): Promise<void>;
export function handleInvalidRefImage(currImg: any, refImg: any, state: any, { emitter }: {
    emitter: any;
}): Promise<void>;
export function handleImageDiff(currImg: any, refImg: any, state: any, { emitter }: {
    emitter: any;
}): Promise<void>;