how to use script runner to switch issue type scheme for a project

[BrianL]

i am trying to use script runner to switch project schemes. 

Both IssueTypeScreenSchemeManager and PermissionSchemeManager got method to remove and add/update project scheme. 

But IssueTypeSchemeManager doesn't have similar method. Is there any class has method to update the project issue type scheme?

[BrianL]

Thanks Mizan, it works follow the solution in that topic

[Mizan]

There is a similar solved question , this might help 

https://community.atlassian.com/t5/Answers-Developer-Questions/How-to-change-issue-type-scheme-in-JIRA-7-x-programatically/qaq-p/489936