def METHOD_NAME(request):
    candidates = []
    system_platform_map = dict(Linux=(Linux64,), Darwin=(OSXIntel64,), Windows=(StandaloneWindows64,))
    for p in system_platform_map.get(request.system, ()):
        if not p.enabled:
            continue
        # 
        # if p == CloudRendering and request.x_display is not None:
        #    continue
        candidates.append(p)
    return candidates