if (node2.metadata == null) {
                return metadata == null;
            }

            return metadata != null && metadata.toString().equals(node2.metadata.toString());
        } else {
            return super.equals(obj);
        }
    }

    @Override
    public int hashCode() {
        if (metadata == null) {
            return super.hashCode();
        }

        return metadata.toString().hashCode();

    }

    private boolean equals(Dependency d1, Dependency d2) {
        return Objects.equals(d1.getGroupId(), d2.getGroupId())
                && Objects.equals(d1.getArtifactId(), d2.getArtifactId())
                && Objects.equals(d1.getVersion(), d2.getVersion())
                && Objects.equals(d1.getType(), d2.getType())
                && Objects.equals(d1.getClassifier(), d2.getClassifier())

        boolean reverse = false;

        if (test.startsWith("!")) {
            reverse = true;
            test = test.substring(1);
        }

        boolean result = Os.OS_VERSION.equals(test);

        if (reverse) {
            return !result;
        } else {
            return result;
        }
    }

    private boolean determineArchMatch(String arch) {
        String test = arch;

    }

    @Override
    public boolean equals(Object other) {
        if (this == other) {
            return true;
        }

        if (!(other instanceof Restriction)) {
            return false;
        }

        Restriction restriction = (Restriction) other;
        if (lowerBound != null) {
            if (!lowerBound.equals(restriction.lowerBound)) {
                return false;

    }

    @Test
    void testEqualsNullSafe() {
        assertFalse(new Organization().equals(null));

        new Organization().equals(new Organization());
    }

    @Test
    void testEqualsIdentity() {
        Organization thing = new Organization();
        assertTrue(thing.equals(thing));
    }

    @Test
    void testToStringNullSafe() {

        .test();
  }

  public void testPairwiseEquivalent_equals() {
    new EqualsTester()
        .addEqualityGroup(Equivalence.equals().pairwise(), Equivalence.equals().pairwise())
        .addEqualityGroup(Equivalence.identity().pairwise())
        .testEquals();
  }

  private enum LengthFunction implements Function<String, Integer> {
    INSTANCE;

    @Override

              @Override
              public int hashCode() {
                return map.hashCode();
              }

              @Override
              public boolean equals(@Nullable Object o) {
                return map.equals(o);
              }

              @Override
              public String toString() {
                return map.toString();
              }

              @Override

    }


    @Override
    public boolean equals ( Object obj ) {
        Name n;

        if ( ! ( obj instanceof Name ) ) {
            return false;
        }
        n = (Name) obj;
        if ( this.scope == null && n.scope == null ) {
            return this.name.equals(n.name) && this.hexCode == n.hexCode;
        }

    // The input handles should never change since they have been mirrored.
    ASSERT_FALSE(remote_arg->HasLocalMirror(nullptr));
  }

  TFE_TensorHandle* retvals[1];
  int num_retvals = 1;
  TFE_Execute(matmul, &retvals[0], &num_retvals, status);
  EXPECT_EQ(TF_GetCode(status), TF_OK) << TF_Message(status);

  // TODO(gjn): Add support for waiting on async local mirrors

            final Object accessType = r.getAttribute(Constants.SEARCH_LOG_ACCESS_TYPE);
            if (Constants.SEARCH_LOG_ACCESS_TYPE_JSON.equals(accessType)) {
                return processJsonSearchPreference(r, query);
            }
            if (Constants.SEARCH_LOG_ACCESS_TYPE_GSA.equals(accessType)) {
                return processGsaSearchPreference(r, query);
            }
            return null;