import ts from 'typescript';
import { Compiler } from 'webpack';
import type { FederatedTypesPluginOptions, TypeServeOptions } from '../types';
export type NormalizeOptions = ReturnType<typeof normalizeOptions>;
export declare const DEFAULT_FETCH_TIMEOUT = 3000;
export declare const DEFAULT_FETCH_MAX_RETRY_ATTEMPTS = 3;
export declare const DEFAULT_FETCH_RETRY_DELAY = 1000;
export declare const validateTypeServeOptions: (options: TypeServeOptions) => void;
export declare const isObjectEmpty: <T extends object>(obj: T) => boolean;
export declare const normalizeOptions: (options: FederatedTypesPluginOptions, compiler: Compiler) => {
    typeFetchOptions: {
        downloadRemoteTypesTimeout?: number;
        maxRetryAttempts?: number;
        retryDelay?: number;
        shouldRetryOnTypesNotFound?: boolean;
        shouldRetry?: boolean;
    };
    distDir: string;
    publicPath: string;
    tsCompilerOptions: ts.CompilerOptions;
    typesIndexJsonFileName: string;
    typesIndexJsonFilePath: string;
    typescriptFolderName: string;
    webpackCompilerOptions: import("webpack").WebpackOptionsNormalized;
    ignoredWatchOptions: string[];
    disableTypeCompilation: boolean;
    disableDownloadingRemoteTypes: boolean;
    additionalFilesToCompile: string[];
    compiler: "tsc" | "vue-tsc";
    typeServeOptions?: TypeServeOptions;
};