@Override
      public Builder clear() {
        super.clear();
        double_ = 0D;

        float_ = 0F;

        int32_ = 0;

        int64_ = 0L;

        uint32_ = 0;

        uint64_ = 0L;

        sint32_ = 0;

        sint64_ = 0L;

        fixed32_ = 0;

        fixed64_ = 0L;

        sfixed32_ = 0;

        sfixed64_ = 0L;

        bool_ = false;

        string_ = "";

        bytesType_ = com.google.protobuf.ByteString.EMPTY;

        if (cardBuilder_ == null) {
          card_ = null;
        } else {
          card_ = null;
          cardBuilder_ = null;
        }
        if (cardsBuilder_ == null) {
          cards_ = java.util.Collections.emptyList();
        } else {
          cards_ = null;
          cardsBuilder_.clear();
        }
        bitField0_ = (bitField0_ & ~0x00000001);
        internalGetMutableCardsmap().clear();
        return this;
      }
Protobuf type {@code com.alibaba.fastjson2.dubbo.GooglePBRequestType}
core/src/test/java/com/alibaba/fastjson2/dubbo/GoogleProtobufBasic.java