import { TLV } from "@li0ard/tinytlv";
import { Interfaces } from "./index";
/**
 * Class for working with DG2 (Face)
*/
export declare class DG2 {
    /**
     * Extract int from Uint8Array
     * @param data Uint8Array
     * @param start Offset
     * @param end Offset+length
     */
    private extractContent;
    /**
     * Read Biometric data block
     * @hidden
     * @param tlv
     */
    readBDB(tlv: TLV): Interfaces.DecodedImage;
    /**
     * Get image of face and meta info
     * @param data Data of EF.DG2 file
     */
    static load(data: string | Uint8Array): Interfaces.DecodedImage[];
}