@java.lang.Override
  public int getPageSize() {
    return pageSize_;
  }
<pre>
Optional. The maximum number of items to return.

If not specified, a default value of 1000 will be used by the service.
Regardless of the page_size value, the response may include a partial list
and a caller should only rely on response's
[`next_page_token`][google.cloud.memorystore.v1.ListBackupCollectionsResponse.next_page_token]
to determine if there are more clusters left to be queried.
</pre>

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

@return The pageSize.
java-valkey/proto-google-cloud-valkey-v1/src/main/java/com/google/cloud/memorystore/v1/ListBackupCollectionsRequest.java