What does this print:
```ruby
class RubyCall
def call(*args)
puts "Call: #{args}"
end
end
xxx = RubyCall.new
xxx.("hello", 1, 2, 3)
```
It calls the \#call method and prints "Call: \["hello", 1, 2, 3\]".
If you want you can do this:
```ruby
xxx::call('adsf')
xxx.call('adsf')
```