API Reference > imodeljs-common > DisplayStyles > RenderSchedule > RenderSchedule.ElementTimelineBuilder > batchId batchId Readonly batchId: number A positive integer that uniquely identifies this timeline among all element timelines in the RenderSchedule.Script. RenderSchedule.ScriptBuilder ensures each ElementTimelineBuilder receives a unique batch Id. Defined in core/common/src/RenderSchedule.ts Line 999 Last Updated: 11 June, 2024