Exposing the LabelFile API?

[mys721tx]

Hello all,

Currently I am using OpenCV to draw bounding boxes for some 1k images for later manual annotation. In my workflow, I created a dictionary by hand and dump them as a labelme compatible JSON. I tried to use labelme.shape and labelme.load_file but they are very difficult to use. In my experience, LabelFile.save cannot marshal a list of Shape object into JSON.

Would it be possible to expose an API for external codes to generate a labelme compatible JSON file?