import { HTMLObject } from "../../../domain/definitions/interfaces/HTMLObject";
/**
 * Tracks and communicates progress updates during asynchronous operations.
 * Used in file loading and task execution processes to report completion status.
 * @implements {HTMLObject}
 */
export declare class ProgressMessage implements HTMLObject {
    /**
     * Literal type identifier for progress messages.
     */
    readonly type: "progress";
    /**
     * Current progress value between 0 and 100.
     */
    readonly progress: number;
    /**
     * Optional descriptive message about the current progress state.
     */
    readonly info?: string;
    /**
     * Creates a new progress message instance.
     * @param {number} progress Completion percentage between 0 and 100.
     * @param {string} [info] Additional progress description.
     */
    constructor(progress: number, info?: string);
    /** @inheritDoc */
    toHtml(): string;
}