背景替换

curl --request POST \
  --url https://api.ppinfra.com/v3/replace-background \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '{
  "extra": {
    "response_image_type": "<string>"
  },
  "image_file": "<string>",
  "prompt": "<string>"
}'

{
  "image_file": "<string>",
  "image_type": "<string>"
}