All functionality related to the Amazon AWS platform.

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Chat Models

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Bedrock

See a usage example. 
import { BedrockChat } from "@langchain/community/chat_models/bedrock";

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LLMs

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Bedrock

See a usage example. 
import { Bedrock } from "@langchain/community/llms/bedrock";

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SageMaker Endpoint

Amazon SageMaker is a system that can build, train, and deploy machine learning (ML) models with fully managed infrastructure, tools, and workflows.
We use SageMaker to host our model and expose it as the SageMaker Endpoint. See a usage example. 
import {
  SagemakerEndpoint,
  SageMakerLLMContentHandler,
} from "@langchain/community/llms/sagemaker_endpoint";

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Text Embedding Models

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Bedrock

See a usage example. 
import { BedrockEmbeddings } from "@langchain/aws";

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Document loaders

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AWS S3 Directory and File

Amazon Simple Storage Service (Amazon S3) is an object storage service. AWS S3 Directory >AWS S3 Buckets
See a usage example for S3FileLoader.
npm
npm install @aws-sdk/client-s3

import { S3Loader } from "@langchain/community/document_loaders/web/s3";

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Memory

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AWS DynamoDB

AWS DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability.
We have to configure the AWS CLI.
npm
npm install @aws-sdk/client-dynamodb
See a usage example. 
import { DynamoDBChatMessageHistory } from "@langchain/community/stores/message/dynamodb";