from typing import List


def get_range(min_max: List[int]) -> range:
    """Returns a range with the turtles min max choices.

    If the input is None then range(-25, 26) is returned.

    Parameters
    ----------
    min_max : List[int]

    Returns
    -------
    min_max : range
    """
    if min_max is None:
        return range(-25, 26)
    minimum = min_max[0]
    maximum = min_max[1]
    if minimum == maximum:
        raise ValueError('min and max must be different')
    if minimum > maximum:
        raise ValueError('min must be lower than max')
    return range(minimum, maximum)