public Builder addWhatUses(
          int index, org.bwapi.proxy.messages.GameMessages.UnitType.Builder builderForValue) {
        if (whatUsesBuilder_ == null) {
          ensureWhatUsesIsMutable();
          whatUses_.add(index, builderForValue.build());
          onChanged();
        } else {
          whatUsesBuilder_.addMessage(index, builderForValue.build());
        }
        return this;
      }