Vidu Q1: Reference 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({
    "21": {
        "class_type": "SaveVideo",
        "inputs": {
            "filename_prefix": "video/ComfyUI",
            "format": "auto",
            "format.codec": "auto",
            "video": [
                "41",
                0
            ]
        },
        "_meta": {
            "title": "Save Video"
        }
    },
    "28": {
        "class_type": "LoadImage",
        "inputs": {
            "image": "UPLOADED_image_FILENAME"
        },
        "_meta": {
            "title": "Load Image"
        }
    },
    "30": {
        "class_type": "LoadImage",
        "inputs": {
            "image": "UPLOADED_image_2_FILENAME"
        },
        "_meta": {
            "title": "Load Image"
        }
    },
    "41": {
        "class_type": "ViduReferenceVideoNode",
        "inputs": {
            "aspect_ratio": "16:9",
            "duration": 5,
            "images": [
                "44",
                0
            ],
            "model": "viduq1",
            "movement_amplitude": "auto",
            "prompt": "In a strange alien desert scene, a futuristic girl with long white hair, wearing tattered yet fashion - forward alien - style clothing, looks up. A giant alien beast with curved tusks and a rugged, armored body is walking toward her. As the camera pulls back, a sci - fi base with towering structures and flying vehicles shuttling about stands behind the beast. An epic and mysterious atmosphere is created, featuring highly detailed textures and cinematic lighting.",
            "resolution": "1080p",
            "seed": 1486794447
        },
        "_meta": {
            "title": "Vidu Reference To Video Generation"
        }
    },
    "42": {
        "class_type": "ImageBatch",
        "inputs": {
            "image1": [
                "28",
                0
            ],
            "image2": [
                "30",
                0
            ]
        },
        "_meta": {
            "title": "Batch Images (DEPRECATED)"
        }
    },
    "44": {
        "class_type": "ImageBatch",
        "inputs": {
            "image1": [
                "42",
                0
            ],
            "image2": [
                "45",
                0
            ]
        },
        "_meta": {
            "title": "Batch Images (DEPRECATED)"
        }
    },
    "45": {
        "class_type": "LoadImage",
        "inputs": {
            "image": "UPLOADED_image_3_FILENAME"
        },
        "_meta": {
            "title": "Load Image"
        }
    }
})
# Replace each example.com URL with a public URL of your file.
workflow.set_input("28", "image", client.assets.from_url("https://example.com/replace-with-a-url/image"))
workflow.set_input("30", "image", client.assets.from_url("https://example.com/replace-with-a-url/image_2"))
workflow.set_input("45", "image", client.assets.from_url("https://example.com/replace-with-a-url/image_3"))

# run() also passes api_key to the partner nodes in this workflow.
job = client.run(workflow, api_key=api_key)