curl --location --request POST 'https://sync.koukoutu.com/v1/create' \
--header 'X-API-Key: api 密钥' \
--data-urlencode 'model_key=background-removal' \
--data-urlencode 'image_base64=data:image/jpeg;base64,[base64 code]' \
--data-urlencode 'output_format=webp' \
--data-urlencode 'crop=0' \
--data-urlencode 'border=0' \
--data-urlencode 'stamp_crop=0' \
--data-urlencode 'response=bytes'
