docs: def scp_pull(remote_path, local_path='.', remote='localhost', user=None):
      r""" wrapper for scp """
      import utool as ut
      if user is not None:
          remote_uri = user + '@' + remote + ':' + remote_path
      else:
          remote_uri = remote + ':' + remote_path
      scp_exe = 'scp'
      scp_args = (scp_exe, '-r', remote_uri, local_path)
      ut.cmd(scp_args)