import type { ConvertOptions, ImageMode, LayoutMode, LinkMode, OverflowMode, ToTextOptions } from './contracts.js';
export interface ValidatedLimits {
    readonly input: number;
    readonly output: number;
    readonly depth: number;
    readonly token: number;
}
export interface ValidatedConfig {
    readonly layout: LayoutMode;
    readonly links: LinkMode;
    readonly images: ImageMode;
    readonly baseUrl: URL | null;
    readonly limits: ValidatedLimits;
    readonly overflow: OverflowMode;
}
export declare function validateToTextOptions(options: ToTextOptions | undefined): ValidatedConfig;
export declare function validateConvertOptions(options: ConvertOptions | undefined): ValidatedConfig;
export declare function displayUrl(raw: string, baseUrl: URL | null): string | null;