Symbolics: How to distinguish unknown type from no method?

General Usage
1

Symbolics.jl sometimes tells me the types of objects.

julia> Symbolics.Term(sqrt, 2) |> typeof
SymbolicUtils.Term{Real,Nothing}

Sometimes it doesn’t know the type of the result.

julia> Symbolics.Term(x->x+1, [2]) |> typeof
SymbolicUtils.Term{Any,Nothing}

But it gives the same Any for cases where there is no method.

julia> Symbolics.Term(x::String->x+1, [2]) |> typeof
SymbolicUtils.Term{Any,Nothing}

Is it possible to distinguish between “unknown return type” from “error, no matching method”?