from django.db import models


class TimestampMixin(models.Model):
    created_at = models.DateTimeField('Создан', auto_now_add=True)
    updated_at = models.DateTimeField('Последнее обновление', auto_now=True)


    class Meta:
        abstract = True

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class TimestampMixin(models.Model):
    <mask token>
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    class Meta:
        abstract = True

<mask token>


class TimestampMixin(models.Model):
    created_at = models.DateTimeField('Создан', auto_now_add=True)
    updated_at = models.DateTimeField('Последнее обновление', auto_now=True)


    class Meta:
        abstract = True

from django.db import models


class TimestampMixin(models.Model):
    created_at = models.DateTimeField('Создан', auto_now_add=True)
    updated_at = models.DateTimeField('Последнее обновление', auto_now=True)


    class Meta:
        abstract = True
