import type { CtDiscoveryInfo } from "./types.js";
interface JsonResponse<T = unknown> {
    statusCode: number;
    json: T | null;
}
interface TextResponse {
    statusCode: number;
    headers: Record<string, string | string[] | undefined>;
    body: string;
}
type RequestJsonFn = (targetUrl: URL, extraHeaders?: Record<string, string>) => Promise<JsonResponse>;
type RequestTextFn = (targetUrl: URL, extraHeaders?: Record<string, string>) => Promise<TextResponse>;
export declare const fetchCtDiscovery: (host: string, requestJson: RequestJsonFn, requestText: RequestTextFn, options?: {
    sampleHosts?: boolean;
    subdomainLimit?: number;
    wildcardLimit?: number;
    sampleLimit?: number;
}) => Promise<CtDiscoveryInfo>;
export {};