export type ImageKind = "png" | "jpeg" | "webp" | "gif" | "avif" | "svg";
export declare var IMAGE_MIME_BY_KIND: Record<ImageKind, string>;
export declare var ACCEPTED_IMAGE_MIMES: string[];
export declare function imageKindForMime(_mime: string): ImageKind | null;
export declare function imageKindForExtension(_name: string): ImageKind | null;
export declare function sniffImageKind(_bytes: Uint8Array): ImageKind | null;
export declare function readImageDimensions(bytes: Uint8Array, kind: ImageKind): {
    width: number | null;
    height: number | null;
};