old_contents: from . import CableDistributorDingo
  
  
  class MVCableDistributorDingo(CableDistributorDingo):
      """ Cable distributor (connection point) """
  
      def __init__(self, **kwargs):
          super().__init__(**kwargs)
  
          self.lv_load_area_group = kwargs.get('lv_load_area_group', None)
          self.id_db = self.grid.cable_distributors_count() + 1
  
      @property
      def pypsa_id(self):
  
          return '_'.join(['MV', str(self.grid.id_db),
                                    'cld', str(self.id_db)])
  
      def __repr__(self):
          return 'mv_cable_dist_' + str(self.id_db)
  
  
  class LVCableDistributorDingo(CableDistributorDingo):
      """LV Cable distributor (connection point) """
  
      def __init__(self, **kwargs):
          super().__init__(**kwargs)
  
          self.string_id = kwargs.get('string_id', None)
          self.branch_no = kwargs.get('branch_no', None)
          self.load_no = kwargs.get('load_no', None)
          self.id_db = self.grid.cable_distributors_count() + 1
  
      def __repr__(self):
          return 'lv_cable_dist_' + str(self.id_db)
  
new_contents: from . import CableDistributorDingo
  
  
  class MVCableDistributorDingo(CableDistributorDingo):
      """ MV Cable distributor (connection point) """
  
      def __init__(self, **kwargs):
          super().__init__(**kwargs)
  
          self.lv_load_area_group = kwargs.get('lv_load_area_group', None)
          self.id_db = self.grid.cable_distributors_count() + 1
  
      @property
      def pypsa_id(self):
  
          return '_'.join(['MV', str(self.grid.id_db),
                                    'cld', str(self.id_db)])
  
      def __repr__(self):
          return 'mv_cable_dist_' + str(self.id_db)
  
  
  class LVCableDistributorDingo(CableDistributorDingo):
      """ LV Cable distributor (connection point) """
  
      def __init__(self, **kwargs):
          super().__init__(**kwargs)
  
          self.string_id = kwargs.get('string_id', None)
          self.branch_no = kwargs.get('branch_no', None)
          self.load_no = kwargs.get('load_no', None)
          self.id_db = self.grid.cable_distributors_count() + 1
  
      def __repr__(self):
          return 'lv_cable_dist_' + str(self.id_db)
  
subject: fix docstrings of CDs