Update exportinp

main.py

@@ -83,7 +83,7 @@ async def fastapi_import_inp(network: str, req: Request):
     }
     return import_inp(network, ChangeSet(ps))
 
-@app.get("/exportinp/", response_class = PlainTextResponse)
+@app.get("/exportinp/")
 async def fastapi_export_inp(network: str):
     return export_inp(network)