Accessing parameters from a simulation

[aevans1]

I've been accessing parameters from pre-run simulations roughly like:
images, parameters = sim.simulate(num_sim=num_sim, indices=indices, return_parameters=True, batch_size=batchsize)
and for grabbing parameters using the ordering given in priors as

class ImagePrior:
...
        self.priors = [
            index_prior,
            quaternion_prior,
            sigma_prior,
            shift_prior,
            defocus_prior,
            b_factor_prior,
            amp_prior,
            snr_prior,
        ]
...

e.g for parameters[-1] for snr, parameters[1] for quaternions.

I'm thinking there may be a simple way of converting the parameters output from simulate(...) so that I could do something like snr = parameters["snr"] through keys.