public com.google.protobuf.ByteString getPageTokenBytes() {
        java.lang.Object ref = pageToken_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b =
              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
          pageToken_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
<pre>
The list page token.
</pre>

<code>string page_token = 5;</code>

@return The bytes for pageToken.
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferProto.java