export interface TurnstileResult {
    ok: boolean;
    errorCodes?: string[];
}
type FetchLike = (input: string, init: {
    method: string;
    body: URLSearchParams;
    signal?: AbortSignal;
}) => Promise<{
    ok: boolean;
    json: () => Promise<unknown>;
}>;
export declare function verifyTurnstile(secret: string, token: string, remoteIp: string | undefined, fetchImpl?: FetchLike): Promise<TurnstileResult>;
export {};
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