code: public S isNotSameAs(A other) {
      objects.assertNotSame(description, actual, other);
      return myself;
    }
docs: Verifies that the <em>actual</em> value is not the same as the given one.
  
  @param other the given value to compare the <em>actual</em> value to.
  @return {@code this} assertion object.
  @throws AssertionError if the <em>actual</em> value is the same as the given one.