Copying .xml file on Agent working Directory using RESTAPI

I want to copy XML file to a particular folder of the agent using REST API. 

In my Scenario, My Integration test is running on Kubernetes Cluster and Once the test has been finished on K8, I want to trigger another build configuration using REST API and  also want to move the XML file which is generated by VSTEST to agent for displaying Integration test result on TeamCity server, for this I want to know, how would I pass XML file from another tool to TeamCity agent using REST API.