import type { NormalizedSignedUrlsConfig } from '@/types/index.js';
import type { CollectionConfig } from 'payload';
import { generateSignedUrl } from '@/utils/index.js';
type SignedUrlContext = {
    collection: CollectionConfig;
    filename: string;
    signedUrls: false | NormalizedSignedUrlsConfig;
    tokenSecurityKey?: string;
};
export declare function maybeGenerateSignedUrl(baseUrl: string, context: SignedUrlContext, options?: Parameters<typeof generateSignedUrl>[3]): string;
export declare function maybeCreateRedirect(baseUrl: string, context: {
    usePayloadAccessControl: boolean;
} & SignedUrlContext, options?: Parameters<typeof generateSignedUrl>[3]): null | Response;
export declare function copyHeaders(from: Headers): Headers;
export declare function createProxyResponse(response: Response, options?: {
    additionalHeaders?: Record<string, string>;
    status?: number;
}): Response;
export {};