scale( timeScale ) {

		if ( timeScale !== 1.0 ) {

			const times = this.times;

			for ( let i = 0, n = times.length; i !== n; ++ i ) {

				times[ i ] *= timeScale;

			}

		}

		return this;

	}
Scale all keyframe times by a factor (useful for frame - seconds conversions).

@param {number} timeScale - The time scale.
@return {KeyframeTrack} A reference to this keyframe track.