Re-apply type annotations from .pyi stubs to your codebase.
When you run retype, it goes through all files you passed as SRC, finds the corresponding .pyi files in the types/ directory, and re-applies typing annotations from .pyi to the sources, using the Python 3 function and variable annotation syntax. The resulting combined sources are saved in typed-src/.
You can also pass directories as sources, in which case retype will look for .py files in them recursively.
