import { Span } from 'opentracing';
import { EventTypes } from '../fetch/events';
interface ILog {
    event: string;
    span?: Span;
    description?: string;
    error?: Error;
    phase?: IPhase;
}
export interface IPhase {
    start: number | null;
    name: string;
    end: number | null;
}
export declare const internalLog: (span: Span | null, phase: any, event: EventTypes, error?: Error | undefined) => void;
export declare const log: ({ event, span, description, error, phase }: ILog) => void;
export {};