import { IfAny } from './type-helpers';
/**
 * Find and parse nearest package.json
 */
export declare function getPackageDetail(baseDir: string): {
    packagePath: string | undefined;
    packageData: any | undefined;
};
/**
 * Require a package if it exists (This function is synchronous and uses require)
 * @param importFn - Function wrapped import promise which allows us to infer module type (see example)
 *
 * @example
 * // This will have the type of the 'typescript' module
 * // @ts-ignore - disable missing module warning
 * const foundModule = requireIfExists('typescript', () => import('typescript'));
 *
 * // This will have type: never
 * // @ts-ignore - disable missing module warning
 * const missingModule = requireIfExists('missing-module', () => import('missing-module'));
 */
export declare function requireIfExists<T extends () => Promise<any>>(moduleName: string, importFn: T): ReturnType<T> extends PromiseLike<infer U> ? IfAny<U, never, Omit<U, 'default'>> : never;