public Builder setFormat(
          java.lang.String value) {
        if (value == null) { throw new NullPointerException(); }
        format_ = value;
        bitField0_ |= 0x00000010;
        onChanged();
        return this;
      }
<pre>
avi, jpg, youtube, cnbc, audio/mpeg formats ...
</pre>

<code>string format = 5;</code>
@param value The format to set.
@return This builder for chaining.
benchmark/src/main/java/com/alibaba/fastjson2/benchmark/protobuf/MediaContentHolder.java