code: def _build_url(self):
          
          self.connection["upload_url"] = (
              "%s/%s" % (self.connection["jss"].base_url, "dbfileupload"))
          self.connection["delete_url"] = (
              "%s/%s" % (self.connection["jss"].base_url,
                         "casperAdminSave.jxml"))
docs: Build the URL for POSTing files.