import { PartialLogEntry } from "./entities/partial-log-entry";
import { PerformanceLogEntry } from "./entities/performance-log-entry";
export declare class PerformanceCache {
    _startLogEntries: Array<PartialLogEntry>;
    _endLogEntries: Array<PartialLogEntry>;
    _performanceEntries: Array<PerformanceLogEntry>;
    constructor();
    sampleStart(stepName: string, instanceId: string): void;
    sampleEnd(stepName: string, instanceId: string): void;
    getSampleTime(stepName: string): number;
    flush(fileName: string, browser: WebdriverIO.Browser, isTestPassed: boolean): Promise<void>;
    private setSample;
    private getPerformanceEntryTime;
    private createPerformanceEntries;
    private getStartIdByStepName;
    private clearData;
    private writePerformanceDataToFile;
}