is there any api to create Change task template throw code.

Hello @AR_9920456,

Thank you for your question. 
Your question appears to be well documented, however I'd like to recommend to bring more details and context to your initial inquiry. 

It also helps to have screenshot(s) to better understand what you are trying to do in your process. 

This will increase your chances to receive meaningful help from other Community members. 

Regards,
Community Moderation Team.

Hi @AR_9920456 

Why do you need the change task template?

Just create a Check Task and link it to a change notice.

PetrH