import type { PreprocessRequest } from '../../api/preprocess-request.js';
import { type LoggerOptions } from '../../app/logger.js';
import type { NavigatorContextProvider } from '../../app/navigator-context-provider.js';
export interface AugmentPreprocessRequestOptions {
    preprocessRequest?: PreprocessRequest;
    navigatorContextProvider?: NavigatorContextProvider;
    loggerOptions?: LoggerOptions;
}
declare const AUGMENTED_MARKER: unique symbol;
interface AugmentedPreprocessRequest extends PreprocessRequest {
    [AUGMENTED_MARKER]?: boolean;
}
export declare function augmentPreprocessRequestWithForwardedFor(options: AugmentPreprocessRequestOptions): AugmentedPreprocessRequest;
export {};