public Builder clearSize() {
        bitField0_ = (bitField0_ & ~0x00000040);
        size_ = 0L;
        onChanged();
        return this;
      }
<pre>
file size
</pre>

<code>int64 size = 7;</code>
@return This builder for chaining.
benchmark/src/main/java/com/alibaba/fastjson2/benchmark/protobuf/MediaContentHolder.java