export declare type ImageStatus = 'queued' | 'processing' | 'ready' | 'absent';
declare const imageStatusConflictError = "imageStatusConflictError";
export declare class ImageStatusConflictError extends Error {
    actualStatus: ImageStatus;
    name: typeof imageStatusConflictError;
    constructor(actualStatus: ImageStatus);
}
export declare function isImageStatusConflictError(x: unknown): x is ImageStatusConflictError;
export declare function imageQueued(imagePath: string): void;
export declare function processingImageStarted(imagePath: string): Promise<void>;
export declare function processingImageCompleted(imagePath: string): Promise<void>;
export declare function imageRemoved(imagePath: string): Promise<void>;
export declare function waitUntilReady(imagePath: string): Promise<void>;
export declare function waitUntilAllReady(): Promise<void>;
export {};