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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def visit_folder(self, item, parent):
 """ Adds create folder command to task runner if folder doesn't already exist. """

        if not item.remote_id:
            command = CreateFolderCommand(self.settings, item, parent)
            self.task_runner_add(parent, item, command)