code: public final @NotNull S isNot(@NotNull Condition<A> condition) {
      if (!matches(condition)) {
        return myself();
      }
      failIfCustomMessageIsSet();
      throw failure(errorMessageIfIs(condition));
    }
docs: Alias for {@link #doesNotSatisfy(Condition)}.
  
  @param condition the given condition.
  @return this assertion object.
  @throws NullPointerException if the given condition is {@code null}.
  @throws AssertionError       if the actual value satisfies the given condition.
  @since 1.2