public Builder addAllUnits(
          java.lang.Iterable<? extends org.bwapi.proxy.messages.GameMessages.Unit> values) {
        if (unitsBuilder_ == null) {
          ensureUnitsIsMutable();
          super.addAll(values, units_);
          onChanged();
        } else {
          unitsBuilder_.addAllMessages(values);
        }
        return this;
      }