Unpacking array of objects into function arguments in Julia

Question

How do you unpack array of values into function arguments?

For example, function Iterators.product() takes variable number of iterators as arguments, i.e.

collect(Iterators.product(1:2, 3:5))
  2×3 Array{Tuple{Int64,Int64},2}:
   (1, 3)  (1, 4)  (1, 5)
   (2, 3)  (2, 4)  (2, 5)

Given an array of iterators, such as a=[1:2, 3:5], how do you unpack a without manually accessing it's elements with a[1] (for example, when length of a is not known in advance)?

I am hoping there is something like the asterisk operator in Python, (something like Iterators.product(*a)), but I didn't find anything like that yet.

Answer 1

Found the answer, instead of fun(*arr), use fun(arr...).