如何检查作为UDF参数的数组中的值的数量？

I am new to Swift (I learned it about a month ago) and I'm creating a custom UICollectionViewCell class, and I need three types of UIButtons and other objects as well, but I don't want to write each one out, so I am creating a function. However, since I have three buttons, the function must take exactly three arrays for each parameter. Can someone please help me with the code where I have included the comments? Thank you!I am new to Swift (I learned it about a month a