{
  "version": "1.0",
  "inputs": {
    "images": { "type": "STRING_ARRAY" }
  },
  "outputs": {
    "images": "$s5.files"
  },
  "order": ["s1", "s2", "s3", "s4","s5"],
  "s1": {
    "type": "file_download",
    "resources": "",
    "inputs": {
      "files": "$inputs.images"
    },
    "outputs": {
      "files": {
        "type": "STRING_ARRAY"
      }
    }
  },
  "s2": {
    "type": "base64_encode",
    "resources": "",
    "inputs": {
      "files": "$s1.files"
    },
    "outputs": {
      "files": {
        "type": "STRING_ARRAY"
      }
    }
  },
  "s3": {
    "type": "nano_banana",
    "resources": "",
    "inputs": {
      "contents": [{
        "parts": [{
          "text": "Using the uploaded face image as reference, generate an ultra-realistic winter candid portrait that matches the provided reference scene as closely as possible. Do not change identity, facial structure, skin tone, or age. Scene: outdoors in fresh snow under a pale, overcast winter sky, minimal background (mostly soft icy blue-white). Subject: lying on the snow and photographed from above in a close-up, filling most of the frame. Expression: genuine joyful laughter, eyes closed, wide natural smile showing teeth, cheeks slightly flushed from cold. Hair: hair slightly messy and wind-tossed, a few strands across the face, small snowflakes caught in hair. Outfit: thick oversized gray wool scarf wrapped around the neck and lower face with visible knit texture, plus a cream/ivory teddy shearling jacket with rich curly fleece texture. Atmosphere: light snow falling with visible snow specks on scarf and hair, crisp cold air feeling. Lighting: soft diffused overcast daylight, natural skin texture, realistic pores, gentle contrast, cool neutral color grade, no beauty filter, no heavy retouching, premium photoreal detail."
        }, {
          "inline_data": {
            "mime_type": "image/jpeg",
            "data": "$s2.files[0]"
          }
        }]
      }]
    },
    "outputs": {
      "images": {
        "type": "STRING_ARRAY"
      }
    }
  },
  "s4": {
    "type": "base64_decode",
    "resources": "",
    "inputs": {
      "files": "[ $s3.images[0] ]"
    },
    "outputs": {
      "files": {
        "type": "STRING_ARRAY"
      }
    }
  },
  "s5": {
    "type": "file_upload",
    "inputs": {
      "files": "$s4.files",
      "provider": "aliyun",
      "prefix": "0000",
      "date_folder": "yyyy-MM-dd"
    },
    "outputs": {
      "files": {
        "type": "STRING_ARRAY"
      }
    }
  }
}