public Builder addTechs(org.bwapi.proxy.messages.GameMessages.TechTypeData value) {
        if (techsBuilder_ == null) {
          if (value == null) {
            throw new NullPointerException();
          }
          ensureTechsIsMutable();
          techs_.add(value);
          onChanged();
        } else {
          techsBuilder_.addMessage(value);
        }
        return this;
      }