setStableIdMode   
  open fun setStableIdMode(@NonNull stableIdMode: ConcatAdapter.Config.StableIdMode): ConcatAdapter.Config.Builder(source)
Sets how the ConcatAdapter should handle stable ids (hasStableIds). See documentation in stableIdMode for details.
Return
this
Parameters
stableIdMode  
The stable id mode for the ConcatAdapter. Defaults to DEFAULT's stableIdMode value (NO_STABLE_IDS).