Since all comments in the python scripts are written in chinese, I wonder if one could improve the docs for this tool. How do you start it? What parameters and options are available?

according to API doc, when use image_file, it should be using POST multipart/form-data:

The binary data of the image, uploaded via POST multipart/form-data.

however, the Face\Providers\BaseProvider::request() seems not treating this way:

/**
 * Multipart/form-data request.
 *
 * @param string $method
 * @param string $resource
 * @param array  $params