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import os
os.environ["HUGGINGFACEHUB_API_TOKEN"] = ""
from langchain_community.llms import HuggingFaceHub
llm = HuggingFaceHub(
repo_id="meta-llama/Llama-2-7b-chat-hf",
task="text-generation",
model_kwargs={
"max_new_tokens": 512,
"temperature": 0.1,
"seed": 42,
},
)
from langchain.schema import (
HumanMessage,
SystemMessage,
AIMessage,
)
from langchain_community.chat_models.huggingface import ChatHuggingFace
messages = [
SystemMessage(content="You're a helpful assistant"),
]
chat_model = ChatHuggingFace(llm=llm)
while True:
question = input("You: ")
messages.append(HumanMessage(content=question))
response = chat_model.invoke(messages)
print(response)
response = response.content
messages.append(AIMessage(content=response))
print(f"Bot: {response}") |