How can you quickly view the type of a variable in Xcode and Swift?

For example, if I am inside a closure and I say,

... { response, data, error in 
...
}

      

        
        
        
      

    

Is there a way to quickly see the response, data and error types?

Right now, the only way to do it without doing println and building your code is saying

var test = response as! Int

      

        
        
        
      

    

or a ridiculous downgrade that will obviously show up as an error. I look and see that it says "NSURLResponse is not convertible to int" and so I know. But this is really ineffective. Is there a way to do this at all in Xcode, even if it is not a closure and you just want to see the type of the variable.