Make function alias

[Andrey via Digitalmars-d-learn]

Hello,
I want to make an alias to function "std.stdio.writeln" and 
"std.stdio.write" and use it like:

static void log(bool newline = true)(string text)
{
   alias print(T...) = newline ? &writeln : &write;

   _file.print();
   text.print();
}

Unfortunately, it doesn't work... Also tried with "enum print 
..." but also no success.
How to do it correctly?