export declare class ChanperfTracker {
    constructor();
    private emitter;
    private filterOutLogs;
    private history;
    on(eventname: 'chanperf', handler: (output: ChanperfData) => void): any;
    private emit;
    get getHistory(): Array<ChanperfData>;
    /**
     * Used to set wether the chanperf should be filtered from the console output
     * @param outputLevel the consoleOutput from the launch config
     */
    setConsoleOutput(outputLevel: string): void;
    /**
     * Clears the current chanperf history
     */
    clearHistory(): void;
    /**
     * Takes the debug output from the device and parses it for any chanperf information.
     * Also if consoleOutput was not set to 'full' then any chanperf output will be filtered from the output.
     * @param log
     * @returns The debug output after parsing
     */
    processLog(log: string): string;
    private toBytes;
    /**
     * Helper function used to create a new ChanperfData object with default values
     */
    private createNewChanperfEventData;
}
export interface ChanperfData {
    error?: {
        message: string;
    };
    memory: {
        total: number;
        anonymous: number;
        file: number;
        shared: number;
        swap: number;
    };
    cpu: {
        total: number;
        user: number;
        system: number;
    };
}