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I'm trying to convert a bgl.Buffer object in blender python to bytes which can be written to a file, so far I'm not sure how to do it at all? Getting error: "TypeError: a bytes-like object is required, not 'bgl.Buffer'" with code:

    draw_texture_2d(offscreen.color_texture, (10, 10), WIDTH, HEIGHT)
    buffer = bgl.Buffer(bgl.GL_BYTE, WIDTH * HEIGHT * 4)
    bgl.glReadBuffer(bgl.GL_BACK)
    bgl.glReadPixels(0, 0, WIDTH, HEIGHT, bgl.GL_RGBA, bgl.GL_UNSIGNED_BYTE, buffer)
    #g = 1
    p = "/tmp/" 
    #array = np.asarray(buffer, dtype=np.uint8)
  #  data = array.tobytes()
    #txt = data.decode(encoding='UTF-8')
    f = open(p + "file.txt", "wb")
    f.write(buffer)

    f.close()
    print(buffer)

as you can see in the comments I tried some other methods, which didn't work (as expected), so I'm wondering if there's some way to write this bgl.Buffer to a file / send it over a socket very quickly? I saw this question bgl.Buffer() to bytes but I wasn't exactly sure how to get it into simple writable bytes

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