import type { AsciiProfile } from './types.js';
export interface CreateAsciiProfileOptions {
    /** CSS font family. Default 'monospace'. */
    fontFamily?: string;
    fontWeight?: number;
    charset?: string;
    characters?: string | readonly string[];
}
/**
 * Generate a profile from a browser-installed font (spec §41). Cached per
 * (family, weight, charset) for the session. Prefer compiled profiles for
 * deterministic rendering and faster startup.
 */
export declare function createAsciiProfile(options?: CreateAsciiProfileOptions): Promise<AsciiProfile>;