human
Solve the following python programming problem given the following code:
def varargs(func_name) : 
    def varargs_formatter(translator, expr) : 
        op = expr.op () 
        return _format_call (translator, func_name, * op.args) 
return <MASK> 
    
    Given the code above, what is a proper replacement for <MASK>? Choose among: func_name
assistant
#Here is a proper replacement for <MASK>.
def varargs_formatter(