Sam Toyer Rohin Shah Andrew Critch Stuart Russell 0001 The MAGICAL Benchmark for Robust Imitation. 2020 NeurIPS https://proceedings.neurips.cc/paper/2020/hash/d464b5ac99e74462f321c06ccacc4bff-Abstract.html conf/nips/2020 db/conf/nips/neurips2020.html#ToyerSCR20