*   <li>If there is no visible constructor or visible static factory method declared by {@code
   *       C}, {@code C} is skipped for equality test.
   *   <li>Equality test is not performed on method return values unless the method is a visible
   *       static factory method whose return type is {@code C} or {@code C}'s subtype.
   * </ul>
   *

   *   <li>If there is no visible constructor or visible static factory method declared by {@code
   *       C}, {@code C} is skipped for equality test.
   *   <li>Equality test is not performed on method return values unless the method is a visible
   *       static factory method whose return type is {@code C} or {@code C}'s subtype.
   * </ul>
   *

  }

  /**
   * Sets the default value for {@code type}. The default value isn't used in testing {@link
   * Object#equals} because more than one sample instances are needed for testing inequality. To set
   * distinct values for equality testing, use {@link #setDistinctValues} instead.
   */
  @CanIgnoreReturnValue
  public <T> ClassSanityTester setDefault(Class<T> type, T value) {
    nullPointerTester.setDefault(type, value);

 *
 * <p>Each of the {@code standard} methods, where appropriate, use {@link Objects#equals} to test
 * equality for both keys and values. This may not be the desired behavior for map implementations
 * that use non-standard notions of key equality, such as a {@code SortedMap} whose comparator is
 * not consistent with {@code equals}.
 *

    }

    static Stream<Arguments> equalsHashParams() {
        return Stream.of(
                // byte[] id based equality (same id and tree id)
                Arguments.of(new byte[] { 0x0A, 0x0B }, new byte[] { 0x0A, 0x0B }, 100L, true),
                // fid based equality (null fileId, same fid and tree id)
                Arguments.of(null, null, 200L, true));
    }

  public void testTestEqualsEmptyLists() {
    equalsTester.addEqualityGroup(reference);
    equalsTester.testEquals();
  }

  /**
   * Test EqualsTester after populating equalObjects. This checks proper handling of equality and
   * verifies hashCode for valid objects
   */
  public void testTestEqualsEqualsObjects() {
    equalsTester.addEqualityGroup(reference, equalObject1, equalObject2);
    equalsTester.testEquals();
  }

 *
 * <p>Each of the {@code standard} methods, where appropriate, use {@link Objects#equals} to test
 * equality for both keys and values. This may not be the desired behavior for map implementations
 * that use non-standard notions of key equality, such as a {@code SortedMap} whose comparator is
 * not consistent with {@code equals}.
 *

  public void testTestEqualsEmptyLists() {
    equalsTester.addEqualityGroup(reference);
    equalsTester.testEquals();
  }

  /**
   * Test EqualsTester after populating equalObjects. This checks proper handling of equality and
   * verifies hashCode for valid objects
   */
  public void testTestEqualsEqualsObjects() {
    equalsTester.addEqualityGroup(reference, equalObject1, equalObject2);
    equalsTester.testEquals();
  }

  boolean isEmpty();

  /** Returns the number of row key / column key / value mappings in the table. */
  int size();

  /**
   * Compares the specified object with this table for equality. Two tables are equal when their
   * cell views, as returned by {@link #cellSet}, are equal.
   */
  @Override
  boolean equals(@Nullable Object obj);

  /**

      checkState(yStats.sumOfSquaresOfDeltas() > 0.0);
      return LinearTransformation.vertical(xStats.mean());
    }
  }

  /**
   * {@inheritDoc}
   *
   * <p><b>Note:</b> This tests exact equality of the calculated statistics, including the floating
   * point values. Two instances are guaranteed to be considered equal if one is copied from the