"generation request": {

{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "文本到图像_电影编辑三联画",
      "version": "v1.0_WINTER_CINEMATIC_TRIPTYCH_3_STRIPS",
      "priority": "最高"
    },
    "output_settings": {
      "aspect_ratio": "4:5",
      "orientation": "纵向",
      "resolution": "超高分辨率",
      "render_style": "超写实电影编辑风格",
      "sharpness": "清晰但自然",
      "film_grain": "细腻模拟颗粒",
      "color_grade": "冷色冬季胶片调",
      "retouch_level": "编辑级最少修图，保留质感",
      "noise_reduction": "低"
    },
    "composition": {
      "layout": "单张图像构成的三联竖幅（三个水平条带自上而下排列：顶/中/底）",
      "panel_bor

...