How to CheckIn the documents files using workflow when copying

Hi Everyone,

I am trying to CheckIn the documents when copying from one site collection document library to another site collection document library.

I am copying documents using Site workflow. Document Copying is working fine but the file is not checkedIN. 

Referred below link,

https://community.nintex.com/t5/Nintex-for-SharePoint/How-to-Copy-files-from-one-site-collection-document-library-to/td-p/27262