langchain-astradb: 0.4.0

Astra DB integration for LangChain.

cache

Classes

cache.AstraDBCache(*[, collection_name, ...])	Cache that uses Astra DB as a backend.
cache.AstraDBSemanticCache(*[, ...])	Astra DB semantic cache.

chat_message_histories

Classes

chat_message_histories.AstraDBChatMessageHistory(*, ...)

Chat message history that stores history in Astra DB.

document_loaders

Classes

document_loaders.AstraDBLoader(...)

Load DataStax Astra DB documents.

storage

Classes

storage.AstraDBBaseStore(*args, **kwargs)	Base class for the DataStax Astra DB data store.
storage.AstraDBByteStore(*, collection_name)	ByteStore implementation using DataStax AstraDB as the underlying store.
storage.AstraDBStore(collection_name, *[, ...])	BaseStore implementation using DataStax AstraDB as the underlying store.

utils

Classes

utils.astradb.SetupMode(value[, names, ...])

Setup mode for the Astra DB collection.

Functions

utils.mmr.cosine_similarity(x, y)	Row-wise cosine similarity between two equal-width matrices.
utils.mmr.maximal_marginal_relevance(...[, ...])	Calculate maximal marginal relevance.

vectorstores

Classes

vectorstores.AstraDBVectorStore(*, ...[, ...])

AstraDB vector store integration.