[Vim 9 script] Is there a way to get the actual type of an object?

Silly example:

vim9script

class Num
this.n = 0
endclass

class Even extends Num
def new(this.n)
if this.n % 2 == 1
throw 'Not even'
endif
enddef

def IsPrime(): bool
return this.n == 2
enddef
endclass

class Odd extends Num
def new(this.n)
if this.n % 2 == 0
throw 'Not odd'
endif
enddef

def IsDivisibleByFive(): bool
return this.n % 5 == 0
enddef
endclass

def Random(): Num
const n = rand() % 16
return n % 2 == 0 ? Even.new(n) : Odd.new(n)
enddef

const v = Random()
if # v is instance of Odd()
echo v.IsDivisibleByFive()
else
echo v.IsPrime()
endif

Is there a way to distinguish the class of the value returned by
Random()?

Thanks,
Life.

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