Update app.py

app.py

@@ -1,12 +1,19 @@
 from fastapi import FastAPI
 from transformers import pipeline
 
+
+
 app = FastAPI(docs_url="/")
 
-pip = pipeline("text2text-generation", model="google/flan-t5-small")
+pipe = pipeline("text2text-generation", model="google/flan-t5-small")
+
 
 @app.get("/generate")
 def generate(text: str):
+    """
+    Using the text2text-generation pipeline from `transformers`, generate text
+    from the given input text. The model used is `google/flan-t5-small`, which
+    can be found [here](https://huggingface.co/google/flan-t5-small).
+    """
     output = pipe(text)
-
     return {"output": output[0]["generated_text"]}