def METHOD_NAME(self) -> None:
    # To validate the thumbnails for topics ans stories can be fetched
    # using AssetsDevHandler.
    android_services.initialize_android_test_data()
    topic = topic_fetchers.get_topic_by_name('Android test', strict=True)
    story = story_fetchers.get_story_by_url_fragment(
        'android-end-to-end-testing')
    assert story is not None
    self.get_custom_response(
        '/assetsdevhandler/topic/%s/assets/thumbnail/test_svg.svg' %
        topic.id, 'image/svg+xml'
    )
    self.get_custom_response(
        '/assetsdevhandler/story/%s/assets/thumbnail/test_svg.svg' %
        story.id, 'image/svg+xml'
    )