export interface TrackEntry {
    alpha: number,
    animation: null
    animationEnd: number,
    animationLast: number,
    animationStart: number,
    attachmentThreshold: number,
    delay: number,
    drawOrderThreshold: number,
    eventThreshold: number,
    holdPrevious: false
    interruptAlpha: number,
    listener: null
    loop: false
    mixBlend: number,
    mixDuration: number,
    mixTime: number,
    mixingFrom: null
    mixingTo: null
    next: null
    nextAnimationLast: number,
    nextTrackLast: number,
    timeScale: number,
    timelineHoldMix: []
    timelineMode: []
    timelinesRotation: []
    totalAlpha: number,
    trackEnd: number,
    trackIndex: number,
    trackLast: number,
    trackTime: number,
}