[Vlad]

I'm sorry but this makes me cringe.

After I saw 'for i = 1, select("#", unpack(self.Events)) do' I had to write back!

Why not use the standard way of writing a table loop?

local events = {"A", "B", "C"}
for i = 1, #events do
  self:RegisterEvent(events[i])
end

The select function is great when fetching a specific argument returned from a function that returns a list of arguments, and using "#" returns how many arguments were returned.

function Events()
  return "A", "B", "C"
end

for k, v in ipairs({Events()}) do
  self:RegisterEvent(v)
end

Also this one works, not ideal but works. You encapsulate the returned arguments in a table and it will return the same table as in the first example. You then iterate it directly using ipairs.

In any case I find this to be a much better approach than unpacking the table to then use select "#" on it to iterate just over the index.