Explore descending into tuples

[cliffckerr]

The last item is skipped, since it's a tuple -- can this restriction be removed?

import sciris as sc
import starsim as ss

pars = sc.objdict(
    par1 = 'temp',
    par2 = ss.dur(100, 'year'),
    stable_dur_pars=dict(
    teens=[
        # (mu,stdev) for levels 0, 1, 2
        ss.dur(100, 'year'),
        [ss.dur(100, 'year'),  ss.dur(1, 'year')],
        [ss.dur(8, 'year'),  ss.dur(2, 'year')],
        (ss.dur(1e-4, 'month'), ss.dur(1e-4, 'month')),
    ],
  )
)

res = sc.search(pars, type=ss.TimePar)