LeaveSample's LeaveWorkflowService WCF code

Feb 2 at 10:45 AM

Recently I downloaded the LeaveSample(MVC-API-EF-WF).

It explains perfectly the layering of the application.

here I am unable to find the code for LeaveWorkflowService WCF service which is communicating with LeaveWorkflow.

Can anyone help me to find out,
Thanks in Advance