* training_end renamed to training_step_end
* training_end renamed to training_step_end
* training_end renamed to training_step_end
* training_end renamed to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* fix lost model reference
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end
* training_end to training_step_end