If you want to convert folders to .json file, for example

flutter pub run project_structure_generator:from_folders -root lib/ -output lib/output.json

-root - root dir

-output - output dir for .json file

If you want to convert json to folders, for example

flutter pub run project_structure_generator:to_folders -json lib/structure.json -output lib/

-output - output dir

-json - input json dir

See folder_structure.json in root path of project for example