@java.lang.Override
  public int getSerializedSize() {
    int size = memoizedSize;
    if (size != -1) return size;

    size = 0;
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
    }
    if (pageSize_ != 0) {
      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, pageSize_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, pageToken_);
    }
    size += getUnknownFields().getSerializedSize();
    memoizedSize = size;
    return size;
  }
<pre>
The next_page_token value returned from a previous List request, if any.
</pre>

<code>string page_token = 3;</code>

@return The bytes for pageToken.
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/ListReservationsRequest.java