def find_unique(a, b):
    """
    :param a: Iterable number 1.
    :type a: list, tuple
    :param b: Iterable number 2.
    :type b: list, tuple
    :return: List of unique objects from both ``a`` and ``b``.
    :rtype: list

    Example:
    --------------------------
    .. code-block:: python
        >>> list_1 = [1, 2, 3]
        >>> list_2 = [1, 5, 2]
        >>> unique_items = find_unique(list_1, list_2)
        >>> print(unique_items)
        [3, 5]
        >>> type(unique_items)
        <class 'list'>
    """
    set_a = set(a)
    set_b = set(b)
    unique = set_a - set_b
    unique |= set_b - set_a
    return list(unique)