$ python model_main.py --pipeline_config_path=./models/pipeline.config
--model_dir=./models
--num_train_steps=20000
--sample_1_of_n_eval_examples=1
--alsologtostderr
$ python -m tensorboard.main --logdir=./models --host localhost --port 8000
$ python export_inference_graph.py --input_type=image_tensor
--pipeline_config_path=./models/pipeline.config
--trained_checkpoint_prefix=./models/model.ckpt-$NO_STEP$
--output_directory=./models/output