Properties
_animationName
_animationName: string | null = null
_enableCacheAttachedInfo
_enableCacheAttachedInfo: boolean = false
_frameIdx
_frameIdx: number = -1
_inited
_inited: boolean = false
_invalid
_invalid: boolean = true
_privateMode
_privateMode: boolean = false
isCompleted
isCompleted: boolean = false
totalTime
totalTime: number = 0