Meta
constructor(width: Long? = null, height: Long? = null, aspect: Double? = null, durationSeconds: Double? = null, fps: Long? = null, audioCodec: String? = null, audioBitrate: String? = null, audioChannels: String? = null, bitrate: Long? = null, original: Attachment.Video.Meta? = null, small: Attachment.Video.Meta? = null)