How to use the pikepdf.Name.DeviceRGB function in pikepdf

im_obj.BitsPerComponent = compdata.bps
    im_obj.Width = compdata.w
    im_obj.Height = compdata.h

    log.debug(
        f"PNG {im_obj.objgen}: palette={compdata.ncolors} spp={compdata.spp} bps={compdata.bps}"
    )
    if compdata.ncolors > 0:
        # .ncolors is the number of colors in the palette, not the number of
        # colors used in a true color image. The palette string is always
        # given as RGB tuples even when the image is grayscale; see
        # https://github.com/DanBloomberg/leptonica/blob/master/src/colormap.c#L2067
        palette_pdf_string = compdata.get_palette_pdf_string()
        palette_data = pikepdf.Object.parse(palette_pdf_string)
        palette_stream = pikepdf.Stream(pike, bytes(palette_data))
        palette = [Name.Indexed, Name.DeviceRGB, compdata.ncolors - 1, palette_stream]
        cs = palette
    else:
        # ncolors == 0 means we are using a colorspace without a palette
        if compdata.spp == 1:
            cs = Name.DeviceGray
        elif compdata.spp == 3:
            cs = Name.DeviceRGB
        elif compdata.spp == 4:
            cs = Name.DeviceCMYK
    im_obj.ColorSpace = cs
    im_obj.write(compdata.read(), filter=Name.FlateDecode, decode_parms=dparms)

if compdata.ncolors > 0:
        # .ncolors is the number of colors in the palette, not the number of
        # colors used in a true color image. The palette string is always
        # given as RGB tuples even when the image is grayscale; see
        # https://github.com/DanBloomberg/leptonica/blob/master/src/colormap.c#L2067
        palette_pdf_string = compdata.get_palette_pdf_string()
        palette_data = pikepdf.Object.parse(palette_pdf_string)
        palette_stream = pikepdf.Stream(pike, bytes(palette_data))
        palette = [Name.Indexed, Name.DeviceRGB, compdata.ncolors - 1, palette_stream]
        cs = palette
    else:
        # ncolors == 0 means we are using a colorspace without a palette
        if compdata.spp == 1:
            cs = Name.DeviceGray
        elif compdata.spp == 3:
            cs = Name.DeviceRGB
        elif compdata.spp == 4:
            cs = Name.DeviceCMYK
    im_obj.ColorSpace = cs
    im_obj.write(compdata.read(), filter=Name.FlateDecode, decode_parms=dparms)