public Builder setLevel(LEVEL value) {
        if (value == null) {
          throw new NullPointerException();
        }

        level_ = value.getNumber();
        onChanged();
        return this;
      }
<code>.com.alibaba.fastjson2.dubbo.LEVEL level = 1;</code>
@param value The level to set.
@return This builder for chaining.
core/src/test/java/com/alibaba/fastjson2/dubbo/GoogleProtobufBasic.java