public Builder clearPageSize() {
      bitField0_ = (bitField0_ & ~0x00000002);
      pageSize_ = 0;
      onChanged();
      return this;
    }
<pre>
Number of results per requests. A valid page_size ranges from 0 to 100
inclusive. If the page_size is zero or unspecified, a page size of 5 will
be chosen. If the page size exceeds 100, it will be coerced down to 100.
Note that a call might return fewer results than the requested page size.
</pre>

<code>int32 page_size = 2;</code>

@return This builder for chaining.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/ListCustomClassesRequest.java