depot/third_party/nixpkgs/pkgs/development/libraries/protobuf/3.15.nix

{ callPackage, ... }:

callPackage ./generic-v3.nix {
  version = "3.15.7";
  sha256 = "03fx96rwxfbmr47f1nrflvaq5kk5p3a9wms4688nbnmymyghyml0";
}