{
"session_id": "string",
"frame_index": "int",
"points":"object[]"
}curl --location --request POST '/kling/v1/videos/multi-elements/add-selection' \
--header 'Authorization: Bearer {{YOUR_API_KEY}}' \
--header 'Content-Type: application/json' \
--data-raw '{
"session_id": "string",
"frame_index": "int",
"points":"object[]"
}'{
"code": 0,
"message": "string",
"request_id": "string",
"data": {
"task_id": "string",
"task_status": "string",
"created_at": 0,
"updated_at": 0
}
}