def bit_to_ascii(bit_string: str) -> str:
    """
    Converts a given string of bits to a string of ASCII characters.
    :param bit_string: a string of 0s and 1s, dividable by 8.
    :return:
    """
    assert len(bit_string) % 8 == 0

    n = int(bit_string, 2)
    result = n.to_bytes((n.bit_length() + 7) // 8, 'big').decode()
    return result