text: from effective_python.models.inheritances import Transport
  from effective_python.module.models import Model
  
  
  class Car(Model, Transport):
      _name = 'transport.car'
      possible_passengers_names = ['animal.cat', 'animal.bird', 'animal.dog']
  
  
  class Bus(Model, Transport):
      _name = 'transport.bus'
      possible_passengers_names = ['animal.cat', 'animal.bird', 'animal.dog']
  
  
  class Train(Model, Transport):
      _name = 'transport.train'
      possible_passengers_names = ['animal.cat', 'animal.bird', 'animal.dog', 'animal.shark']
  
  
  class Plane(Model, Transport):
      _name = 'transport.plane'
      possible_passengers_names = []
  