manipulating test steps with xray cloud

I am trying to add tests steps to a Test issue on Jira-Xray on the fly, so I will be able to import tests results by steps (i dont know how many steps I'm going to have before running the test). I found that API endpoint for Jira server: https://docs.getxray.app/display/XRAY/v2.0#/Test%20Step/post_test__testKey__steps , but I couldn't find the equivalent for Jira cloud.