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Let’s load the Hugging Face Embedding class. 
pip install -qU  langchain langchain-huggingface sentence_transformers

from langchain_huggingface.embeddings import HuggingFaceEmbeddings

embeddings = HuggingFaceEmbeddings(model_name="sentence-transformers/all-mpnet-base-v2")

text = "This is a test document."

query_result = embeddings.embed_query(text)

query_result[:3]

[-0.04895168915390968, -0.03986193612217903, -0.021562768146395683]

doc_result = embeddings.embed_documents([text])

​
Hugging Face Inference Providers

We can also access embedding models via the Inference Providers, which let’s us use open source models on scalable serverless infrastructure. First, we need to get a read-only API key from Hugging Face. 
from getpass import getpass

huggingfacehub_api_token = getpass()
Now we can use the HuggingFaceInferenceAPIEmbeddings class to run open source embedding models via Inference Providers. 
from langchain_huggingface import HuggingFaceInferenceAPIEmbeddings

embeddings = HuggingFaceInferenceAPIEmbeddings(
    api_key=huggingfacehub_api_token,
    model_name="sentence-transformers/all-MiniLM-l6-v2",
)

query_result = embeddings.embed_query(text)
query_result[:3]

[-0.038338541984558105, 0.1234646737575531, -0.028642963618040085]

​
Hugging Face Hub

We can also generate embeddings locally via the Hugging Face Hub package, which requires us to install huggingface_hub 
!pip install huggingface_hub

from langchain_huggingface.embeddings import HuggingFaceEndpointEmbeddings

embeddings = HuggingFaceEndpointEmbeddings()

text = "This is a test document."

query_result = embeddings.embed_query(text)

query_result[:3]
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