private com.google.protobuf.RepeatedFieldBuilder<
          org.bwapi.proxy.messages.GameMessages.TechType, org.bwapi.proxy.messages.GameMessages.TechType.Builder, org.bwapi.proxy.messages.GameMessages.TechTypeOrBuilder> 
          getAbilitiesFieldBuilder() {
        if (abilitiesBuilder_ == null) {
          abilitiesBuilder_ = new com.google.protobuf.RepeatedFieldBuilder<
              org.bwapi.proxy.messages.GameMessages.TechType, org.bwapi.proxy.messages.GameMessages.TechType.Builder, org.bwapi.proxy.messages.GameMessages.TechTypeOrBuilder>(
                  abilities_,
                  ((bitField0_ & 0x00000100) == 0x00000100),
                  getParentForChildren(),
                  isClean());
          abilities_ = null;
        }
        return abilitiesBuilder_;
      }