pyLIMA fitting functions now return a very useful JSON file containing the results. For DE, this JSON contains the whole DE population, which causes the file to grow from ~20 kB to ~200 MBs. While such a big file is still machine-readable, if the User wants to quickly check the results, the text editors have a hard time loading such a large file. It may be better to save results and chains/population in two separate JSON files.