[go-nuts] Is it possible to "extract" the generic [T] from a reflected type ?

[Mihai Barbu]

I need to call some generic functions with types that are now known at 
compile time. Is it possible to do this?
 See the code below (vastly reduced).

// fv is a function that returns an unknown type
func Do(fv reflect.Value){
 // get the first returned type by function fv
  vt := fv.Type().Out(0)
   // how to call `Hello` with `v` ?
  // Obviously the code below is incorrect
    Hello[vt]()
}

func Hello[T any](){
 // do something with T
 json.Marshal(new(T))
}

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