import type { RumConfiguration } from '../configuration';
import type { RumFetchResolveContext, RumFetchStartContext, RumXhrCompleteContext, RumXhrStartContext } from '../requestCollection';
import type { RumSessionManager } from '../rumSessionManager';
import type { TracingOption } from './tracer.types';
export interface Tracer {
    traceFetch: (context: Partial<RumFetchStartContext>) => void;
    traceXhr: (context: Partial<RumXhrStartContext>, xhr: XMLHttpRequest) => void;
    clearTracingIfNeeded: (context: RumFetchResolveContext | RumXhrCompleteContext) => void;
}
export declare function isTracingOption(item: unknown): item is TracingOption;
/**
 * Clear tracing information to avoid incomplete traces. Ideally, we should do it when the
 * request did not reach the server, but the browser does not expose this. So, we clear tracing
 * information if the request ended with status 0 without being aborted by the application.
 *
 * Reasoning:
 *
 * * Applications are usually aborting requests after a bit of time, for example when the user is
 * typing (autocompletion) or navigating away (in a SPA). With a performant device and good
 * network conditions, the request is likely to reach the server before being canceled.
 *
 * * Requests aborted otherwise (ex: lack of internet, CORS issue, blocked by a privacy extension)
 * are likely to finish quickly and without reaching the server.
 *
 * Of course, it might not be the case every time, but it should limit having incomplete traces a
 * bit.
 * */
export declare function clearTracingIfNeeded(context: RumFetchResolveContext | RumXhrCompleteContext): void;
export declare function startTracer(configuration: RumConfiguration, sessionManager: RumSessionManager): Tracer;
export declare function isTracingSupported(): boolean;