curl --request POST \
  --url https://api.evolink.ai/v1/images/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "mj-v7-variation",
  "model_params": {
    "task_id": "task-unified-xxx",
    "image_number": 2,
    "type": "strong"
  }
}
'

{
  "created": 1757165031,
  "id": "task-unified-1757165031-mjv7",
  "model": "mj-v7-variation",
  "object": "image.generation.task",
  "progress": 0,
  "status": "pending",
  "task_info": {
    "can_cancel": true,
    "estimated_time": 45
  },
  "type": "image",
  "usage": {
    "billing_rule": "per_call",
    "credits_reserved": 1.8,
    "user_group": "default"
  }
}