add: initial files.

Dockerfile

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+# read the doc: https://huggingface.co/docs/hub/spaces-sdks-docker
+# you will also find guides on how best to write your Dockerfile
+
+FROM python:3.9
+
+WORKDIR /code
+
+COPY ./requirements.txt /code/requirements.txt
+
+RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
+
+COPY . .
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]

main.py

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+from fastapi import FastAPI
+import gradio as gr
+
+
+app = FastAPI()
+
+
+def greet(name):
+    return "Hello " + name + "!"
+
+
+@app.get("/")
+def read_root():
+    demo = gr.Interface(fn=greet, inputs="text", outputs="text")
+    demo.launch()

requirements.txt

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+fastapi==0.74.*
+requests==2.27.*
+uvicorn[standard]==0.17.*
+gradio