function f(path)
pydict = load_pyhfjson(path)
pyhfmodel = build_pyhf(pydict)
pyhfmodel
end
R = f("./blah.json")
maximize(
R.LogLikelihood,
R.inits,
BFGS(),
Optim.Options(f_tol=1e-5, time_limit=10);
autodiff=:forward
);