def alias(thumbnailer, thumbnail_options, source_filename,
            thumbnail_extension, **kwargs):
    return '.'.join([source_filename, thumbnail_options.get('ALIAS', ''), thumbnail_extension])
Generate filename based on thumbnail alias name (option ``THUMBNAIL_ALIASES``).
dataset/ETHPy150Open SmileyChris/easy-thumbnails/easy_thumbnails/namers.py/alias