@java.lang.Override
  public int getPageSize() {
    return pageSize_;
  }
<pre>
Optional. The maximum number of groups to return. The service may return
fewer than this value. If unspecified, at most 500 groups will be
returned. The maximum value is 1000; values above 1000 will be coerced to
1000.
</pre>

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

@return The pageSize.
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/ListGroupsRequest.java