Seedance 2.0 Image to Video

# Python 3.10+: pip install comfy-sdk==0.4.0
import os

from comfy_sdk import Comfy

api_key = os.environ.get("COMFY_API_KEY", "").strip()
if not api_key: raise RuntimeError("Set COMFY_API_KEY")
os.environ.setdefault("COMFY_BASE_URL", "https://cloud.comfy.org")
client = Comfy(api_key=api_key)
workflow = client.workflows.from_json({
    "1": {
        "class_type": "ByteDance2FirstLastFrameNode",
        "inputs": {
            "first_frame": [
                "3",
                0
            ],
            "first_frame_asset_id": "",
            "last_frame_asset_id": "",
            "model": "Seedance 2.0",
            "model.duration": 5,
            "model.generate_audio": False,
            "model.prompt": "The old herbalist adjusts the straps of his heavy bamboo pack, then sets off along the sunlit stone path with a brisk, springy stride, his indigo robes swaying and the bundles of wild flowers on his pack bouncing with every step. A mountain breeze sweeps across the valley, rippling the terraced meadows and sending a flurry of pink rhododendron petals spinning past him. He pauses, turns back toward the camera with a warm crinkled smile and raises one hand in a wave. The camera starts low near the path and glides up and around him in a smooth crane move, revealing the wide green valley and the snowy peaks behind as fluffy clouds drift across the bright cyan sky. Lively 2D anime motion, squash and stretch on the walk, clean cel-shaded lines and bright flat colours.",
            "model.ratio": "16:9",
            "model.resolution": "1080p",
            "seed": 1654228562,
            "watermark": False
        },
        "_meta": {
            "title": "ByteDance Seedance 2.5 First-Last-Frame to Video"
        }
    },
    "2": {
        "class_type": "SaveVideo",
        "inputs": {
            "filename_prefix": "video/Seedance2.0_flf2v",
            "format": "auto",
            "format.codec": "auto",
            "video": [
                "1",
                0
            ]
        },
        "_meta": {
            "title": "Save Video"
        }
    },
    "3": {
        "class_type": "LoadImage",
        "inputs": {
            "image": "UPLOADED_image_FILENAME"
        },
        "_meta": {
            "title": "Load Image"
        }
    }
})
workflow.set_input("3", "image", client.assets.from_url("https://comfy.org/catalog-media/0d2365e5-245a-4141-93ae-4610b282f3f8/a081afc2-7423-4d5a-a4dc-85c7cd8db380"))

# run() also passes api_key to the partner nodes in this workflow.
job = client.run(workflow, api_key=api_key)
for output in job.get_outputs("2"):
    output.to_file(output.name)