Can somebody implement a function like cv2.calcOpticalFlowPyrLK() using the method?

I find the input and output of the method is different from the traditional optical flow, and it generates the event representations before tracking. Can somebody achieve the function like traditional cv2.calcOpticalFlowPyrLK() which can be use directly? I need to use the method for real-time video frame process. I am very urgently to hope there is a researchers to help me, thanks!