I am clueless about Bitmap updates

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I have been working on an app that takes game data and converts it into a custom bitmap. I have gotten to the point where I can export the data in the format of a byte array. However, I cannot get the OLED screen I am working with to show the bitmap. I have absolutely no clue how I should be formatting the handlers, the event binding, or the event payloads after spending hours trying to decipher the documentation but I can't figure anything out. I am working with the requests library for python 3. Any help would be greatly appreciated.