How to create user with Service Integration Account with No Password Expiration

Summary:

Hi I need to create a service user with no password expiration we have to set up a connectivity agent in OIC using that common user how can we achieve the same tried the below link but hard to understand.

https://www.ateam-oracle.com/post/oic-no-password-expiration-for-basic-authentication

Unable to find below parameters/variables:

$OIC_APP_ID

$SI_CLIENT_ID

$SI_APP_ID

$SI_CLIENT_SECRET

$OIC_APP_ROLE_ID