delegate with optional parameters

[Inquie via Digitalmars-d-learn]

On Sunday, 2 April 2017 at 20:02:56 UTC, Basile B. wrote:
> On Sunday, 2 April 2017 at 19:24:14 UTC, Inquie wrote:
>> is it possible to create a delegate that takes an optional 
>> number of parameters and/or return type?
>>
>> T delegate(S...)(S) special_delegate;
>>
>> I guess this is impossible?
>
> alias Dg(Return, Params...) = Return delegate(Params);
>
> Dg!(int,float, string) myDg;

What I mean is that I want to be able to overload delegates like 
one can do with normal members.