Khalil-2020

**Describe the bug** I need help in this one please: I want to re-implent the "strip_pruning" function described in this link (line 222): https://github.com/tensorflow/model-optimization/blob/v0.7.2/tensorflow_model_optimization/python/core/sparsity/keras/prune.py#L222-L270 But I want this time to...