Can we add "create or replace job, or create or replace scheduler .. " in changeset ?

Hello ALL,

My oracle has some procedures, which do some works regularly.

Now we use liquibase to update the database.

I added "create or replace procedure .. " in changeset,  they work well, I can see the created procedures, meanwhile, I could find many examples online,

but I still need to add a job and a scheduler to the database, so the procedures can work according to the definition of scheduler in a  job.

I can not  find a way to add job and scheduler in liquibase, and can not find examples online.

Does anyone have experiences to do this?

many thanks.

R