def METHOD_NAME(capfd, piker_dir, ex_watchlists):
    expected_out = ex_watchlists.copy()
    expected_out['dad'].remove('SPY')
    run(f"piker watchlists -d {piker_dir} remove dad SPY")
    out = wl.ensure_watchlists(piker_dir)
    assert out == expected_out
    # removing a non-entry should be a no-op
    run(f"piker watchlists -d {piker_dir} remove dad SPY")
    out = wl.ensure_watchlists(piker_dir)