import { IdDocumentInfo, VerifyIdentityDocumentInput } from './types';
/**
 * Utility class for preparing identity document verification requests.
 *
 * Image files can be in JPG, GIF or PNG format.
 */
export declare class IdDocument {
    /**
     * Load document image from filesystem and Base 64 encode for use with Identity Verification
     * Service.
     *
     * @param imagePath Filesystem location of image file.
     */
    private static loadAndEncodeImage;
    /**
     * Prepare an identity document verification request.
     *
     * @param idDocumentInfo Data needed to build an identity document verification request.
     */
    static buildDocumentVerificationRequest(idDocumentInfo: IdDocumentInfo): Promise<VerifyIdentityDocumentInput>;
}