code: public static <T extends Comparable<T>> RelationalOperator<T> equalTo(T value) {
      return new EqualToOperator<>(value);
    }
docs: Gets the RelationalOperator performing equality comparisons to determine whether all provided values are equal to
  the given expected value.
  
  @param value the expected object value of the equality comparison.
  @param <T> the expected Class type for the object used in the equality comparison.
  @return a RelationalOperator for the equality comparison.