import * as ts from 'typescript'; export declare type PolyfillStatusOrModuleName = boolean | string; export interface PolyfillsList { [key: string]: PolyfillStatusOrModuleName; } export interface PolyfillsGeneratorOptions { targets?: string; polyfills?: PolyfillsList; } export declare function createPolyfillsTransformerFactory(options?: PolyfillsGeneratorOptions): ts.TransformerFactory;