GitLab

- Create the output directory (whose name is passed by the user in the "save_directory" parameter) where it will be saved encoder and decoder, if not exists.
- Empty the output directory, if it contains any files or subdirectories.
- Create the "encoder" directory inside "save_directory", if not exists.
- Create the "decoder" directory inside "save_directory", if not exists.
- Save the encoder and the decoder in the previous two directories, respectively.