}
  }

  abstract static class Chopper {

    final Chopper or(Chopper you) {
      Chopper i = this;
      return new Chopper() {
        @Override
        Optional<String> chop(String str) {
          return i.chop(str).or(you.chop(str));
        }
      };
    }

    abstract Optional<String> chop(String str);

    static Chopper suffix(String suffix) {
      return new Chopper() {

    assertThat(cache.asMap().keySet()).containsExactly(2, 4);

    CacheTesting.processPendingNotifications(cache);
    assertThat(removalListener.getCount()).isEqualTo(2);

    // Should we pepper more of these calls throughout the above? Where?
    CacheTesting.checkValidState(cache);
  }

  /**
   * Tests that when a single entry exceeds the segment's max weight, the new entry is immediately

pb.ao
pb.gov.br
pb.leg.br
pc.it
pc.pl
pccw
pd.it
pdns.page
pe
pe.ca
pe.gov.br
pe.it
pe.kr
pe.leg.br
pecori.jp
peewee.jp
penne.jp
penza.su
pepper.jp
per.jo
per.la
per.nf
perma.jp
perso.ht
perso.sn
perso.tn
perspecta.cloud
perugia.it
pesaro-urbino.it
pesarourbino.it
pescara.it
pet
pf
pfizer

    CPUs.

## Major Features And Improvements

*   New Optimizer internal API for non-slot variables. Descendants of
    AdamOptimizer that access _beta[12]_power will need to be updated.
*   `tf.estimator.{FinalExporter,LatestExporter}` now export stripped
    SavedModels. This improves forward compatibility of the SavedModel.
*   FFT support added to XLA CPU/GPU.