old_contents: from . import curvefit
  from . import evfuncs
  from . import graphs
  from . import mat_utils
  from . import metrics
  from . import spect_utils
  from . import utils
  from . import koumura_utils
  
new_contents: from . import curvefit
  from . import evfuncs
  from . import graphs
  from . import mat_utils
  from . import metrics
  from . import spect_utils
  from . import utils
  from . import koumura_utils
  from .model import CNNBiLSTM
subject: add import CNNBiLSTM to cnn_bilstm.__init__.py