import type { Context, Span } from '@opentelemetry/api';
import { InstrumentationBase } from '@opentelemetry/instrumentation';
import type { InstrumentationModuleDefinition } from '@opentelemetry/instrumentation';
import type { H3Event } from 'h3';
import type { NitroApp } from 'nitropack/types';
import type { ChannelListener } from 'node:diagnostics_channel';
interface NitroInstrumentationConfig {
    enabled?: boolean;
    routeNameHook?: RouteNameHook;
    ignoreRequestHook?: (event: H3Event) => boolean;
    requestHeaders?: string[];
    responseHeaders?: string[];
}
declare module 'h3' {
    interface H3EventContext {
        otel?: {
            ctx: Context;
            span: Span;
            _endTime?: number;
        };
    }
}
declare global {
    var __nitro__: {
        app: NitroApp;
        [key: string]: unknown;
    };
    var __package_name: string;
    var __package_version: string;
}
type EventHook = (event: H3Event, span: Span) => void;
type RouteNameHook = (event: H3Event) => string | undefined;
export declare class NitroInstrumentation extends InstrumentationBase<NitroInstrumentationConfig> {
    isInstalled: boolean;
    requestHook?: EventHook;
    responseHook?: EventHook;
    routeNameHook?: RouteNameHook;
    ignoreRequestHook?: (event: H3Event) => boolean;
    _initHandler?: ChannelListener;
    constructor(config?: NitroInstrumentationConfig);
    updateRouteAttributes(event: H3Event, span: Span): void;
    getRouteName(event: H3Event): string;
    install(nitroApp: NitroApp): void;
    enable(): void;
    disable(): void;
    setConfig(config: NitroInstrumentationConfig): void;
    protected init(): InstrumentationModuleDefinition | InstrumentationModuleDefinition[] | void;
}
export {};