How to save and not warn all external libraries for configuring Proguard?

I would like to keep all external libraries in my project, and also not warn about them at all.

But it seems to me that the only way to do this is for each library, add options -keep

and -dontwarn

.

Is there a way to do this? I am hoping to do something like this:

-keep class externallibraries. ** {*; } -dontwarn externallibraries. **

Any advice or comments are appreciated.