AttributeError: module 'apps.reservations.models.Guest' has no attribute '_meta'

from faker import Faker
 
from apps.reservations.models import Guest
 
fake = Faker()
fake_profile = fake.simple_profile()
 
 
class TestingFactory():
 
    [...]
 
    def guest_factory(self):
        COMMENT_MAX_LENGTH = Guest._meta.get_field('comment').max_length # TU JEST PROBLEM
 
        guest, _ = Guest.objects.get_or_create(
            first_name=fake_profile['name'][0],
            last_name=fake_profile['name'][1],
            sex=fake_profile['sex'],
            birth_date=fake_profile['birth_date'],
            nationality=fake.country_code(),
            passport_number='AEO123456',
            phone_number='+48123456789',
            email=fake_profile['mail'],
            comment=fake.text(max_nb_chars=COMMENT_MAX_LENGTH)
        )
 
        return guest

from django.contrib.auth import get_user_model

from faker import Faker

# from apps.reservations.models import Guest

User = get_user_model()
fake = Faker()
fake_profile = fake.simple_profile()


class TestingFactory():

    def user_factory(self):
        user, _ = User.objects.get_or_create(
            username=fake_profile['username'],
            email=fake_profile['mail'],
            first_name=fake_profile['name'][0],
            last_name=fake_profile['name'][1],
            sex=fake_profile['sex'],
            birth_date=fake_profile['birthdate'],
            phone_number='+48123456789',
            passport_number='AEO123456'
        )

        return user

    def guest_factory(self, model):
        COMMENT_MAX_LENGTH = model._meta.get_field('comment').max_length

        guest, _ = model.objects.get_or_create(
            first_name=fake_profile['name'][0],
            last_name=fake_profile['name'][1],
            sex=fake_profile['sex'],
            birth_date=fake_profile['birthdate'],
            nationality=fake.country_code(),
            passport_number='AEO123456',
            phone_number='+48123456789',
            email=fake_profile['mail'],
            comment=fake.text(max_nb_chars=COMMENT_MAX_LENGTH)
        )

        return guest