public Builder setPageSize(int value) {

      pageSize_ = value;
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }
<pre>
Optional. Maximum number of traces to return. If not specified or &lt;= 0, the
implementation selects a reasonable value.  The implementation may
return fewer traces than the requested page size.
</pre>

<code>int32 page_size = 3 [(.google.api.field_behavior) = OPTIONAL];</code>

@param value The pageSize to set.
@return This builder for chaining.
java-trace/proto-google-cloud-trace-v1/src/main/java/com/google/devtools/cloudtrace/v1/ListTracesRequest.java