calc_reward             Calculate Reward Signal
compute_drl_sums_cpp    Compute DRL Sums (C++)
drl_log_target_beta_cpp
                        Compute Log Target Density for Beta (C++)
fit_drl_bayes           Bayesian MCMC Sampler for DRL-AP2 Weibull Model
fit_drl_mle             Maximum Likelihood Estimation for DRL-AP2
                        Weibull Model (C++ Accelerated)
init_drl_env            Initialize MDP State Observer for Dynamic
                        Censoring
