"generation request": {

{
  "generation_request": {
    "meta_data": {
      "tool": "NanoBanana Pro",
      "task_type": "photoreal_party_flash_photo_booth_collage",
      "version": "v1.1_RED_DRESS_FLASH_4UP_PHOTOBOOTH_BROWN_HAIR",
      "priority": "highest"
    },

    "output_settings": {
      "aspect_ratio": "1:1",
      "orientation": "square",
      "resolution_target": "ultra_high_res",
      "render_style": "photoreal_phone_flash_snapshot",
      "sharpness": "crisp_but_natural",
      "film_grain": "subtle",
      "color_grade": "warm_indoor_flash",
      "dynamic_range": "natural_not_hdr",
      "skin_rendering": "real_texture_light_makeup_no_retouch"
    },

    "creative_prompt": {
      "format": {
        "layout": "2x2 grid collage (four frames)",
        "borders": "thin clean borders between frames",
        "no_text": true,
        "no_icons": true,
        "no_watermark": true
      },

    

...