class PetOwnerSchema(BaseSchema):
"""Example PetOwner schema, with different polymorphic fields."""
auto_pets = TryFrom([CatSchema, DogSchema], many=True)
by_attribute_pets = ByAttribute(
{
'fur_density': CatSchema,
'barking_power': DogSchema
}, many=True)
by_type_contact = ByType([fields.Email(), fields.Url()])
class PersonSchema(BaseSchema):
"""Example Person schema."""
name = fields.String(required=True)
birth_date = fields.Date()
email = fields.Email()