old_contents: # -*- coding: utf-8 -*-
  
  from sklearn.svm.classes import NuSVC as NuSVCClass
  
  from sklearn_porter.estimator.EstimatorBase import EstimatorBase
  from sklearn_porter.estimator.SVC import SVC
  from sklearn_porter.utils import get_logger
  
  
  L = get_logger(__name__)
  
  
  class NuSVC(SVC, EstimatorBase):
      """
      Extract model data and port a NuSVC classifier.
  
      See also
      --------
      https://scikit-learn.org/stable/modules/generated/sklearn.svm.NuSVC.html
      """
      estimator = None  # type: NuSVCClass
  
      def __init__(self, estimator: NuSVCClass):
          super().__init__(estimator)
          self.estimator_url = 'https://scikit-learn.org/stable/modules/' \
                               'generated/sklearn.svm.NuSVC.html'
  
new_contents: # -*- coding: utf-8 -*-
  
  from sklearn.svm.classes import NuSVC as NuSVCClass
  
  from sklearn_porter.estimator.EstimatorBase import EstimatorBase
  from sklearn_porter.estimator.SVC import SVC
  from sklearn_porter.utils import get_logger
  
  
  L = get_logger(__name__)
  
  
  class NuSVC(SVC, EstimatorBase):
      """
      Extract model data and port a NuSVC classifier.
  
      See also
      --------
      https://scikit-learn.org/stable/modules/generated/sklearn.svm.NuSVC.html
      """
      estimator = None  # type: NuSVCClass
  
      def __init__(self, estimator: NuSVCClass):
          super().__init__(estimator)
  
subject: Remove `estimator_url` variable