local function __TS__ArrayUnshift(self, ...)
    local items = {...}
    local numItemsToInsert = #items
    if numItemsToInsert == 0 then
        return #self
    end
    for i = #self, 1, -1 do
        self[i + numItemsToInsert] = self[i]
    end
    for i = 1, numItemsToInsert do
        self[i] = items[i]
    end
    return #self
end