anyone help me. i wanna looking for an example in keto use regex? because i add my subject like this

keto:object#relation/[0-9a-zA-Z]+$@user1
keto:object#relation/+([0-9]|[a-z]|[A-Z]|[-_])@user1
keto:object#relation/<.*>@user1

but i got a denied when i test use keto check command cli.

keto check user1 relation/1111 keto object --> <denied>
keto check user1 "relation/<.*>" keto object --> <allowed>

but i didn’t found any regex check code in keto 😞