Documentation - Yaml Script Pipe variables

[Ben Lorenzo]

Looking to execute a script on a remote host from a pipeline running in Bitbucket with a Parameter.

Found this example on-line, but I'm looking for the documentation needed to build something like below.

- step:
        name: Install on server
        script:
            - pipe: atlassian/ssh-run:0.6.0
              variables: 
                SSH_USER: Administrator
                SERVER: 145.131.29.64
                DEBUG: 'true'
                COMMAND: 'powershell.exe -FILE C:/Websites/mywebsite.com/release/deploy.ps1'