message: Bug fix: Expose get_pruning_hparams function
diff: @@ -28,6 +28,7 @@ from tensorflow.contrib.model_pruning.python.learning import train
  from tensorflow.contrib.model_pruning.python.pruning import apply_mask
  from tensorflow.contrib.model_pruning.python.pruning import get_masked_weights
  from tensorflow.contrib.model_pruning.python.pruning import get_masks
  +from tensorflow.contrib.model_pruning.python.pruning import get_pruning_hparams
  from tensorflow.contrib.model_pruning.python.pruning import get_thresholds
  from tensorflow.contrib.model_pruning.python.pruning import get_weight_sparsity
  from tensorflow.contrib.model_pruning.python.pruning import get_weights
  @@ -39,8 +40,8 @@ from tensorflow.python.util.all_util import remove_undocumented
  _allowed_symbols = [
  'masked_convolution', 'masked_conv2d', 'masked_fully_connected',
  'MaskedBasicLSTMCell', 'MaskedLSTMCell', 'train', 'apply_mask',
  - 'get_masked_weights', 'get_masks', 'get_thresholds', 'get_weights',
  - 'get_weight_sparsity', 'Pruning'
  + 'get_masked_weights', 'get_masks', 'get_pruning_hparams', 'get_thresholds',
  + 'get_weights', 'get_weight_sparsity', 'Pruning'
  ]
  remove_undocumented(__name__, _allowed_symbols)
  