@Override
      public Builder clear() {
        super.clear();
        name_ = "";
        bitField0_ = (bitField0_ & ~0x00000001);
        id_ = 0;
        bitField0_ = (bitField0_ & ~0x00000002);
        email_ = "";
        bitField0_ = (bitField0_ & ~0x00000004);
        return this;
      }
Protobuf type {@code com.alibaba.fastjson2.protobuf.Person}
core/src/test/java/com/alibaba/fastjson2/protobuf/PersonOuterClass.java