def _SplitConfig(device, allow_cached_props=False):
  """Returns a config specifying which APK splits are required by the device.

  Args:
    device: A DeviceUtils object.
    allow_cached_props: Whether to use cached values for device properties.
  """
  return ('%s-r%s-%s:%s' % (device.GetLanguage(cache=allow_cached_props),
                            device.GetCountry(cache=allow_cached_props),
                            device.screen_density, device.product_cpu_abi))