AmazonKnowledgeBasesRetriever()Amazon Bedrock Knowledge Bases retrieval.
See https://aws.amazon.com/bedrock/knowledge-bases for more info.
Example:
from langchain_community.retrievers import AmazonKnowledgeBasesRetriever
retriever = AmazonKnowledgeBasesRetriever(
knowledge_base_id="<knowledge-base-id>",
retrieval_config={
"vectorSearchConfiguration": {
"numberOfResults": 4
}
},
)