'Creates fake image files for a list of asset_keys.'

def _create_fake_images(self, asset_keys):

    for asset_key_string in asset_keys:
        asset_key = AssetKey.from_string(asset_key_string)
        content = StaticContent(asset_key, 'Fake    asset', 'image/png', 'data')
        contentstore().save(content)
