def METHOD_NAME(self) -> None:
    model = blog_models.BlogPostModel(
        id='validblogid1',
        title='Sample Title',
        content='<p>hello</p>,',
        author_id='user',
        url_fragment='url_fragment_1',
        created_on=self.YEAR_AGO,
        last_updated=self.YEAR_LATER,
        published_on=self.YEAR_AGO)
    error = blog_validation_errors.ModelMutatedDuringJobErrorForLastUpdated(
        model)
    self.assertEqual(
        error.stderr,
        'ModelMutatedDuringJobErrorForLastUpdated in BlogPostModel('
        'id="validblogid1"): last_updated=%r is later than the audit job\'s'
        ' start time' % (model.last_updated))