Function onBatchStart

packages/client/lib/client/tracing.spec.ts:327–329

(message: any)

      const commandStartEvents: Array<any> = [];

      const onBatchStart = (message: any) => {
        batchStartEvents.push(message);
      };
      const onCommandStart = (message: any) => {
        commandStartEvents.push(message);
      };