code: def parametrize_grid(self, debug=False):
          
          # TODO: Add more detailed description
  
          # set grid's voltage level
          self.set_voltage_level()
  
          # set MV station's voltage level
          self._station.set_operation_voltage_level()
  
          # set default branch types (normal, aggregated areas and within settlements)
          self.default_branch_type,\
          self.default_branch_type_aggregated,\
          self.default_branch_type_settle = self.set_default_branch_type(debug)
  
          # set default branch kinds
          self.default_branch_kind_aggregated = self.default_branch_kind
          self.default_branch_kind_settle = 'cable'
  
          # choose appropriate transformers for each HV/MV sub-station
          self._station.select_transformers()
docs: Performs Parametrization of grid equipment:
          
              i) Sets voltage level of MV grid, 
              ii) Operation voltage level and transformer of HV/MV station, 
              iii) Default branch types (normal, aggregated, settlement)
  
          Args
          ----
          debug: bool, defaults to False
              If True, information is printed during process.
              
          Notes
          -----
          It is assumed that only cables are used within settlements.