import type { Span } from '../../../trace'; import type { webpack } from 'next/dist/compiled/webpack/webpack'; export declare const spans: WeakMap; export declare const webpackInvalidSpans: WeakMap; export declare class ProfilingPlugin { compiler: any; runWebpackSpan: Span; constructor({ runWebpackSpan }: { runWebpackSpan: Span; }); apply(compiler: any): void; traceHookPair(spanName: string | (() => string), startHook: any, stopHook: any, { parentSpan, attrs, onStart, onStop, }?: { parentSpan?: (...params: any[]) => Span; attrs?: any; onStart?: (span: Span, ...params: any[]) => void; onStop?: (span: Span, ...params: any[]) => void; }): void; traceTopLevelHooks(compiler: any): void; traceCompilationHooks(compiler: any): void; }