Sharepoint Integration: Syntax for Subsite path or How to set Subsite path?

Hello All,

How to set Subsite path in Sharepoint OOTB box connector function.Struggling to find syntax to set.We are trying to upload the document to a subsite path

  a!shpCopyDocumentFromAppian(
              scsExternalSystemKey: "sharepoint",
              usePerUserCredentials: false(),
              hostname:  "My Site" /*cons!SHAREPOINT_HOSTNAME*/,
              port: cons!SHAREPOINT_PORT,
              timeout: cons!SHAREPOINT_TIMEOUT,
              retries: cons!SHAREPOINT_NUM_RETRIES,
              path: "/_api/web/GetFolderByServerRelativeUrl('%2Fglobalclientonboarding%2FDocuments%2FTest')/Files/add(url='" &
              document(local!documentToSend[1], "
              subsitePath :"/globalclientonboarding/Documents/Test"
            )