docs: def Build(self):
      """Build templates."""
      self.SetupVars()
      self.Clean()
  
      if not os.path.exists(args.grr_src):
        self.GitCheckoutGRR()
      proto_sdist = self.MakeProtoSdist()
      core_sdist = self.MakeCoreSdist()
      client_sdist = self.MakeClientSdist()
      client_builder_sdist = self.MakeClientBuilderSdist()
  
      self.InstallGRR(proto_sdist)
      self.InstallGRR(core_sdist)
      self.InstallGRR(client_sdist)
      self.InstallGRR(client_builder_sdist)
      self.BuildTemplates()
      if args.test_repack_install:
        self._RepackTemplates()
        self._InstallInstallers()