Custom assignment operator

[jacobsin]

I realize what I am asking is "Dark magic" and goes against what should be 
done. However, with that in mind I would like to create a custom assignment 
operator.
    
    
     var x:int =5
    
    Run

vs.
    
    
     var x <| 5
    
    Run

or
    
    
     var x << 5
    
    Run

What I have tried so far...
    
    
     template `<<` (a, b: untyped): untyped =
        system.`=`(a, b)
    
    var a:int
    a << 5
    echo a
    
    
    Run

The above code works but, 
    
    
     var a << 5
    
    Run

But the error I get back is:
    
    
     index.nim(9, 11) Error: type mismatch: got <type int, int literal(5)>
    but expected one of:
    proc `=`[T](dest: var T; src: T)
      first type mismatch at position: 1
      required type: var T
      but expression 'int' is of type: type int
    
    expression: `=`(int, 5)
    
    
    Run

Hope this is possible but honestly not sure. Mind you im only barely getting 
into Nim so expect some really dumb questions :/