export type ImageSize = {
    w: number;
    h: number;
};
export declare class ImageBase64 {
    private _value;
    static safeParse(value: ImageBase64 | string | undefined | null): ImageBase64 | undefined;
    static parse(value: ImageBase64 | string): ImageBase64;
    static fromDataUrl(value: string): ImageBase64;
    private constructor();
    asBase64String(): string;
    asDataUrl(type?: 'svg' | 'jpg'): string;
}