/**
 * handlers/text.ts — Plain text / source code / markup handler
 *
 * For text-based formats (TXT, MD, HTML, JSON, XML, CSV, JS, TS, etc.),
 * we append the signature as a structured comment block at the very end.
 *
 * Format:
 *   \n\n<!-- MAJIK-SIGNATURE-BEGIN -->\n
 *   <base64-encoded signature JSON>
 *   \n<!-- MAJIK-SIGNATURE-END -->\n
 *
 * The HTML comment markers are chosen because they are:
 *   - Valid in HTML, XML, and SVG
 *   - Visually clear in plain text
 *   - Easily searchable/strippable
 *   - Not affecting rendering in most formats
 *
 * For JSON files specifically, the block is still appended (making it technically
 * invalid JSON), which means you should strip before parsing JSON.
 */
import { FormatHandler } from "../../types";
export declare class TextHandler implements FormatHandler {
    readonly name = "Text/Markup/Source";
    readonly supportedMimeTypes: readonly string[];
    canHandle(bytes: Uint8Array, mimeType?: string): boolean;
    embed(bytes: Uint8Array, signatureJson: string): Promise<Uint8Array>;
    extract(bytes: Uint8Array): Promise<string | null>;
    strip(bytes: Uint8Array): Promise<Uint8Array>;
}