Outer-training, or meta-training is the process of learning the meta-parameters.
learned_optimization.outer_trainers.gradient_learner.GradientEstimator
learned_optimization.outer_trainers.gradient_learner.gradient_worker_compute
learned_optimization.outer_trainers.gradient_learner.SingleMachineGradientLearner
learned_optimization.outer_trainers.full_es
learned_optimization.outer_trainers.full_es.FullES
learned_optimization.outer_trainers.truncated_pes
learned_optimization.outer_trainers.truncated_pes.TruncatedPES