yeah! it is. Thanks!
Mauro於 2015年4月22日星期三 UTC+8下午4時23分46秒寫道：
>
> I think this should work:
>
> typealias Foo Type{Function, Function}
>
> although I don't have a julia build after the merge of #10380 where
> tuple types were modified.
>
> On Wed, 2015-04-22 at 08:44, Miao Yang <[email protected] <javascript:>>
> wrote:
> > I don't know how to describe my problem, so let me past the code.
> >
> > ```
> >
> > julia> typealias Foo (Function, Function)
> > (Function,Function)
> >
> > julia> f(foo::Foo) = 1
> > ERROR: ArgumentError: invalid type for argument foo in method definition
> > for f at none:1
> >
> >
> > ```
> >
> > The Julia version is ` Version 0.4.0-dev+4328 `
> >
> > And these works recently ...
>
>
