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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def create_settings(sender, **kwargs):
 """ create user notification settings on user creation """

    created = kwargs['created']
    user = kwargs['instance']
    if created:
        UserWebNotificationSettings.objects.create(user=user)
        UserEmailNotificationSettings.objects.create(user=user)