export declare function imageToBase64(img: Blob): Promise<string>;
/**
 * A fast shallow equality check for two objects.
 * Copied form the package `react-fast-compare`
 * https://www.npmjs.com/package/fast-shallow-equal
 **/
export declare function fastShallowEqual(a: any, b: any): boolean;
export declare function debounce<T extends (...args: any[]) => any>(callback: T, options: {
    waitFor: number;
    maxWait?: number;
}): (...args: Parameters<T>) => void;
export declare function convertBlobUrlToBlob(blobUrl: string): Promise<Blob>;
export declare function saveAs(blob: Blob, filename: string): void;