import { SystemLogLevel } from './Types';
export declare type MetricScopeMap = Map<string, number>;
export declare type MetricLabelMap = Map<string, number>;
export declare type MetricResult = {
    scope_id: number;
    label_id: number;
    start: number;
    end: number;
};
export declare type SessionResult = {
    metricLabels: string[];
    metricScopes: string[];
    results: MetricResult[];
    sessionName: string;
    sessionStart: number;
    sessionEnd: number;
};
export declare type StartSessionOptions = {
    keepLabels?: boolean;
    keepScopes?: boolean;
    keepResults?: boolean;
};
export declare type NewMeticOptions = {
    label?: string;
    scope?: string;
};
/**
 * Used to collect metrics during runtime
 */
export interface Instrumentor {
    beginSession(name: string, options?: StartSessionOptions): void;
    endSession(): SessionResult;
    newLabel(name: string): number;
    newScope(name: string): number;
    metric(options?: NewMeticOptions): MetricCollector;
}
interface InstrumentorConstructor {
    new (): Instrumentor;
    prototype: Instrumentor;
}
export interface MetricCollector {
    start(): () => void;
}
declare const Instrumentor: InstrumentorConstructor;
export default Instrumentor;
export declare function SetInstrumentorLogger(newLogger: (level: SystemLogLevel, message: any) => void): void;