langchain/docs/modules/models/llms/integrations/huggingface_hub.ipynb

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   "source": [
    "# Hugging Face Hub\n",
    "\n",
    "The [Hugging Face Hub](https://huggingface.co/docs/hub/index) is a platform with over 120k models, 20k datasets, and 50k demo apps (Spaces), all open source and publicly available, in an online platform where people can easily collaborate and build ML together.\n",
    "\n",
    "This example showcases how to connect to the Hugging Face Hub."
   ]
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   "source": [
    "To use, you should have the ``huggingface_hub`` python [package installed](https://huggingface.co/docs/huggingface_hub/installation)."
   ]
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   "source": [
    "!pip install huggingface_hub"
   ]
  },
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    "# get a token: https://huggingface.co/docs/api-inference/quicktour#get-your-api-token\n",
    "\n",
    "from getpass import getpass\n",
    "\n",
    "HUGGINGFACEHUB_API_TOKEN = getpass()"
   ]
  },
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    "os.environ[\"HUGGINGFACEHUB_API_TOKEN\"] = HUGGINGFACEHUB_API_TOKEN"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "id": "3acf0069",
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     "text": [
      "The FIFA World Cup is a football tournament that is played every 4 years. The year 1994 was the 44th FIFA World Cup. The final answer: Brazil.\n"
     ]
    }
   ],
   "source": [
    "from langchain import PromptTemplate, HuggingFaceHub, LLMChain\n",
    "\n",
    "template = \"\"\"Question: {question}\n",
    "\n",
    "Answer: Let's think step by step.\"\"\"\n",
    "prompt = PromptTemplate(template=template, input_variables=[\"question\"])\n",
    "llm_chain = LLMChain(prompt=prompt, llm=HuggingFaceHub(repo_id=\"google/flan-t5-xl\", model_kwargs={\"temperature\":0, \"max_length\":64}))\n",
    "\n",
    "question = \"Who won the FIFA World Cup in the year 1994? \"\n",
    "\n",
    "print(llm_chain.run(question))"
   ]
  },
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   "execution_count": null,
   "id": "843a3837",
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