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app.py
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# app.py — BRA v7 (AIGaming repo) × InstantID × ZeroGPU
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# 2025-06-22
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demo.queue(default_concurrency_limit=2).launch(share=False)
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# app.py — BRA v7 (AIGaming repo) × InstantID × ZeroGPU
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# 2025-06-22
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##############################################################################
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# torchvision 0.17+ 互換パッチ(functional_tensor → functional)
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##############################################################################
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import sys, types
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try:
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import torchvision.transforms.functional as F
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if "torchvision.transforms.functional_tensor" not in sys.modules:
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faux = types.ModuleType("torchvision.transforms.functional_tensor")
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# 必要最低限だけ持たせる
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faux.rgb_to_grayscale = getattr(F, "rgb_to_grayscale", None)
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sys.modules["torchvision.transforms.functional_tensor"] = faux
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except Exception as e:
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print("[WARN] torchvision compatibility patch failed:", e)
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##############################################################################
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# 0. diffusers-0.27 互換: cached_download() パッチ
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##############################################################################
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from huggingface_hub import hf_hub_download
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import huggingface_hub as _hf
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if not hasattr(_hf, "cached_download"):
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_hf.cached_download = hf_hub_download
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##############################################################################
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# 1. ライブラリ
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##############################################################################
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import os, io, base64, subprocess, traceback
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from pathlib import Path
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from typing import Optional
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import numpy as np
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import torch, gradio as gr, spaces
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from fastapi import FastAPI, UploadFile, File, Form, HTTPException
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from PIL import Image
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from diffusers import (
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StableDiffusionControlNetPipeline,
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ControlNetModel,
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DPMSolverMultistepScheduler,
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)
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from diffusers.loaders import AttnProcsLayers
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from insightface.app import FaceAnalysis
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from realesrgan import RealESRGANer
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##############################################################################
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# 2. キャッシュパス
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##############################################################################
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ROOT = Path("/data") if Path("/data").exists() else Path.home() / ".cache/instantid"
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MODELS = ROOT / "models"; LORA = ROOT / "lora"; UPSCALE = ROOT / "realesrgan"
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for p in (MODELS, LORA, UPSCALE): p.mkdir(parents=True, exist_ok=True)
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##############################################################################
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# 3. モデル ID / ファイル
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##############################################################################
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# --- BRA v7 (公開) ---
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BRA_REPO = "AIGaming/beautiful_realistic_asians"
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BRA_FILE = "beautifulRealistic_v7.safetensors"
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BRA_REV = "801a9b1999dd7018e58a1e2b432fdccd3d1d723d" # 固定 revision
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# --- IP-Adapter 本体 & LoRA ---
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IP_REPO, IP_BIN = "h94/IP-Adapter", "models/ip-adapter-plus-face_sd15.bin"
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LORA_REPO,IP_LORA = "h94/IP-Adapter-FaceID", "ip-adapter-faceid-plusv2_sd15_lora.safetensors"
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# --- ControlNet (MediaPipe Face) ---
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CN_REPO, CN_SUBF = "CrucibleAI/ControlNetMediaPipeFace", "diffusion_sd15"
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# --- Real-ESRGAN ---
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ESRGAN_REPO, ESRGAN_FILE = "aimagelab/realesrgan", "RealESRGAN_x4plus.pth"
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##############################################################################
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# 4. HF Hub ダウンロード
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##############################################################################
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def dl(repo: str, file: str, sub: str | None = None, rev: str | None = None) -> Path:
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return Path(hf_hub_download(repo, file, subfolder=sub,
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revision=rev, cache_dir=str(MODELS)))
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##############################################################################
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# 5. グローバル
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##############################################################################
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pipe: Optional[StableDiffusionControlNetPipeline] = None
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face_analyser: Optional[FaceAnalysis] = None
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upsampler: Optional[RealESRGANer] = None
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##############################################################################
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# 6. 初期化
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##############################################################################
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def init():
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global pipe, face_analyser, upsampler
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if pipe is not None:
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return
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print("[INIT] downloading models…")
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# 6-1 BRA v7
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bra_ckpt = dl(BRA_REPO, BRA_FILE, rev=BRA_REV)
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# 6-2 ControlNet
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cn = ControlNetModel.from_pretrained(
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CN_REPO, subfolder=CN_SUBF, torch_dtype=torch.float16,
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cache_dir=str(MODELS)
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)
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# 6-3 Pipeline from .safetensors + ControlNet
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pipe_ = StableDiffusionControlNetPipeline.from_single_file(
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bra_ckpt, controlnet=cn, torch_dtype=torch.float16,
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safety_checker=None
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)
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pipe_.scheduler = DPMSolverMultistepScheduler.from_config(pipe_.scheduler.config)
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# 6-4 IP-Adapter
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ip_lora = dl(LORA_REPO, IP_LORA)
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### 最終修正 ### subfolder引数に空文字列""を渡し、TypeErrorを回避する
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pipe_.load_ip_adapter(IP_REPO, "", weight_name=IP_BIN, cache_dir=str(MODELS))
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AttnProcsLayers(pipe_.unet.attn_processors).load_lora_weights(
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ip_lora, adapter_name="ip_faceid", safe_load=True
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)
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pipe_.set_adapters(["ip_faceid"], adapter_weights=[0.6])
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pipe_.to("cuda"); pipe_ = pipe_
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pipe = pipe_
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face_analyser = FaceAnalysis(
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name="buffalo_l", root=str(MODELS), providers=["CUDAExecutionProvider"]
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); face_analyser.prepare(ctx_id=0, det_size=(640,640))
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esr = dl(ESRGAN_REPO, ESRGAN_FILE)
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upsampler = RealESRGANer(scale=4, model_path=str(esr), half=True,
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tile=512, tile_pad=10, pre_pad=0, gpu_id=0)
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print("[INIT] ready.")
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##############################################################################
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# 7. プロンプト
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##############################################################################
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BASE = "(masterpiece:1.2), best quality, ultra-realistic, RAW photo, 8k, cinematic lighting, textured skin, "
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NEG = "verybadimagenegative_v1.3, ng_deepnegative_v1_75t, (worst quality:2), (low quality:2), lowres, blurry, bad anatomy, bad hands, extra digits, watermark, signature"
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##############################################################################
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# 8. 生成コア
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##############################################################################
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@spaces.GPU(duration=60)
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def generate(face: Image.Image, subj: str, add: str, neg: str,
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cfg: float, ipw: float, steps: int, w: int, h: int,
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up: bool, upf: int, progress=gr.Progress(track_tqdm=True)):
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if pipe is None:
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init()
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if len(face_analyser.get(np.array(face))) == 0:
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raise ValueError("顔が検出できません。他の画像でお試しください。")
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pipe.set_adapters(["ip_faceid"], adapter_weights=[ipw])
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img = pipe(prompt=BASE+subj+", "+add,
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negative_prompt=NEG+", "+neg,
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num_inference_steps=steps, guidance_scale=cfg,
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image=face, width=w, height=h).images[0]
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if up:
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upsampler.scale = int(upf)
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img, _ = upsampler.enhance(np.array(img)); img = Image.fromarray(img)
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return img
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##############################################################################
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# 9. Gradio UI
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##############################################################################
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with gr.Blocks(title="BRA v7 × InstantID (ZeroGPU)") as demo:
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gr.Markdown("## BRA v7 × InstantID")
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with gr.Row():
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f = gr.Image(type="pil", label="Face ID"); s = gr.Textbox(label="被写体説明")
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ap = gr.Textbox(label="追加プロンプト"); ng = gr.Textbox(label="追加ネガ")
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with gr.Row():
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cf = gr.Slider(1,20,7.5,0.5,"CFG"); ip = gr.Slider(0.1,1.0,0.6,0.05,"IP-Adapter Weight")
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with gr.Row():
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st = gr.Slider(10,50,30,1,"Steps"); W = gr.Slider(512,1024,768,64,"W"); H = gr.Slider(512,1024,768,64,"H")
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with gr.Row():
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up = gr.Checkbox(label="Real-ESRGAN"); upf = gr.Radio([4,8], value=4, label="アップスケール")
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btn = gr.Button("Generate"); out = gr.Image(type="pil", label="Result")
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btn.click(generate, [f,s,ap,ng,cf,ip,st,W,H,up,upf], out, show_progress=True)
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##############################################################################
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# 10. FastAPI
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##############################################################################
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app = FastAPI()
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@app.post("/api/generate")
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async def api_gen(subj: str=Form(...), cfg: float=Form(7.5), stp: int=Form(30),
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ipw: float=Form(0.6), W: int=Form(768), H: int=Form(768),
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file: UploadFile=File(...)):
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img = Image.open(io.BytesIO(await file.read())).convert("RGB")
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res = generate(img, subj, "", "", cfg, ipw, stp, W, H, False, 4)
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buf = io.BytesIO(); res.save(buf,"PNG")
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return {"image":"data:image/png;base64,"+base64.b64encode(buf.getvalue()).decode()}
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##############################################################################
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# 11. Launch
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##############################################################################
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demo.queue(default_concurrency_limit=2).launch(share=False)
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