code: def files_mv(self, source, dest, **kwargs):
          
          args = (source, dest)
          return self._client.request('/files/mv', args, **kwargs)
docs: Moves files and directories within the MFS.
  
          .. code-block:: python
  
              >>> c.files_mv("/test/file", "/bla/file")
              b''
  
          Parameters
          ----------
          source : str
              Existing filepath within the MFS
          dest : str
              Destination to which the file will be moved in the MFS