export type DrawableImage = {
    complete?: boolean;
    naturalWidth?: number;
    naturalHeight?: number;
    width?: number;
    height?: number;
    decoding?: "async" | "sync" | "auto";
    onload?: ((event?: Event) => void) | null;
    src?: string | Uint8Array | ArrayBuffer;
};
export declare function getCachedImage(uri: string): DrawableImage | undefined;
export declare function putCachedImage(uri: string, img: DrawableImage): void;
export declare function imageHasSize(img: DrawableImage): boolean;
export declare function dataUriBytes(uri: string): Uint8Array | null;
export declare function getOrLoadImage(uri: string): DrawableImage | null;