old_contents: from __future__ import absolute_import
  
  from . import datasets
  from . import evaluation_metrics
  from . import feature_extraction
  from . import loss
  from . import metric_learning
  from . import models
  from . import utils
  from . import dist_metric
  from . import evaluators
  from . import trainers
  
  __version__ = '0.1.0'
  
new_contents: from __future__ import absolute_import
  
  from . import datasets
  from . import evaluation_metrics
  from . import feature_extraction
  from . import loss
  from . import metric_learning
  from . import models
  from . import utils
  from . import dist_metric
  from . import evaluators
  from . import trainers
  
  __version__ = '0.2.0'
  
subject: Change the version string