def inclusion(first_x, second_x):
    """
    Check if a list is included in another.

    Parameters
    ----------
    first_x : list
        List to evaluate.
    second_x : list
        Reference list to compare with.

    Returns
    -------
    bool
        True if first_x is contained in second_x.
    """
    return all(elem in second_x for elem in first_x)