public Builder clearPageSize() {
      bitField0_ = (bitField0_ & ~0x00000002);
      pageSize_ = 0;
      onChanged();
      return this;
    }
<pre>
Optional. Requested page size. Server may return fewer items than
requested. If unspecified, server will pick an appropriate default.
</pre>

<code>int32 page_size = 2 [(.google.api.field_behavior) = OPTIONAL];</code>

@return This builder for chaining.
java-video-live-stream/proto-google-cloud-live-stream-v1/src/main/java/com/google/cloud/video/livestream/v1/ListDvrSessionsRequest.java