How to wish for Legendary merchant?

[Peperos]

I've been trying to find way to summon a legendary merchant for my testing reasons but i can't seem to do it

I looked up a wish and it supposed to be testhero:<base type>
base type supposed to be "any object blueprint" but im not sure what that is as it isn't explained exactly
I tried to use merchants IDs but that did nothing

Can i get any help on how to properlly spawn one or is the command just broken?

[Bwixie]

i just tested the wish with an ichor merchant, a jeweler, and a kipper, all worked as expected. are you inputting the wish wrong?

testhero:IchorMerchant for example.

[Peperos]

I figured it out

I wasn't capitalazing the letters of the IDs
It works fine now