attribute type conversion (e.g. checkbox <-> radio/dropdown) based on existing metadata and options (required for COCO export which only supports RADIO and DROPDOWN attributes)
attribute type conversion (e.g. checkbox <-> radio/dropdown) based on existing metadata and options (required for COCO export which only supports RADIO and DROPDOWN attributes)

ox-vgg/via,ox-vgg/via,ox-vgg/via,ox-vgg/via,ox-vgg/via,ox-vgg/via