public Builder addAllTechs(
          java.lang.Iterable<? extends org.bwapi.proxy.messages.GameMessages.TechTypeData> values) {
        if (techsBuilder_ == null) {
          ensureTechsIsMutable();
          super.addAll(values, techs_);
          onChanged();
        } else {
          techsBuilder_.addAllMessages(values);
        }
        return this;
      }