export interface Timing {
  startTime: number;
  duration: number;
}
/**
 * A meter for measuring timings. Measurements are stored using the browser's
 * performance APIs, which provide high-resolution timestamps, as well as
 * provides visibility in the browser's developer tooling.
 */
export declare class TimingMeter {
  readonly name: string;
  private readonly perf;
  private measures;
  private nextId;
  constructor(name: string, perf?: Performance);
  /**
   * Clears any measurements from the buffer.
   */
  clearMeasurements(): void;
  /**
   * Measures the execution time of a function.
   *
   * @param target A function to execute and measure.
   */
  measure<T>(target: () => T): T;
  /**
   * Measures the time for a promise to resolve, either successfully or not.
   *
   * @param target The promise to measure.
   */
  measure<T>(target: Promise<T>): Promise<T>;
  /**
   * Returns a list of measurements that have been recorded, and clears the
   * internal measurement buffer.
   */
  takeMeasurements(): Timing[];
  /**
   * Returns the last measurement to have been recorded, and clears the internal
   * measurement buffer.
   */
  takeLastMeasurement(): Timing | undefined;
  private begin;
  private end;
}
export declare const paintTime: TimingMeter;