import { ObservabilityOptions, LogEntry, LoggerFn, RequestContext } from '../types';
import { RemoteShipper } from './shipper';
export declare const DEFAULT_ENDPOINT = "https://api.apilens.rest/v1/ingest";
export interface ResolvedOptions {
    slowThreshold: number;
    logger: LoggerFn | false;
    enableMetrics: boolean;
    skipRoutes: Array<string | RegExp>;
    traceHeader: string;
    maxRoutes: number;
    sampleRate: number;
    tags: Record<string, string>;
    onRequest?: ObservabilityOptions['onRequest'];
    onResponse?: ObservabilityOptions['onResponse'];
    shipper: RemoteShipper;
}
export declare function warnNoApiKey(): void;
export declare function setup(options: ObservabilityOptions): ResolvedOptions | null;
export declare function shouldSkip(path: string, skipRoutes: Array<string | RegExp>): boolean;
export declare function buildEntry(opts: ResolvedOptions, context: RequestContext, method: string, route: string, path: string, status: number, ip: string, userAgent: string | undefined, extras?: {
    requestSize?: number;
    responseSize?: number;
}): LogEntry;
export declare function finalize(opts: ResolvedOptions, entry: LogEntry): void;
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