from typing import Sequence, Callable, TypeAlias, Iterable

def avg(values: Sequence[int | float]) -> float:
    return sum(values) / len(values)

length: list[int | float] = [12.5, 11, 12.3, 11.6, 11.1, 12]
length_avg = avg(length)


count_member: tuple[int, int, int, int, int] = (12, 15, 16, 11, 10)
member_avg = avg(count_member)
print(member_avg)

prime_set: set[int] = {2, 3, 5, 7, 11}  #
prime_avg = avg(prime_set)

"""
avg: Callable[[Sequence[int | float]], float] = \
    lambda values: sum(values) / len(values)

Scale: TypeAlias = Sequence[int | float]

avg: Callable[[Scale], float] = \
    lambda v: sum(v) / len(v) if len(v) > 0 else 0.0

"""