BaseEntityStore#

class langchain.memory.entity.BaseEntityStore[source]#

Bases: BaseModel, ABC

Deprecated since version 0.3.1: Please see the migration guide at: https://python.langchain.com/docs/versions/migrating_memory/

Abstract base class for Entity store.

Create a new model by parsing and validating input data from keyword arguments.

Raises [ValidationError][pydantic_core.ValidationError] if the input data cannot be validated to form a valid model.

self is explicitly positional-only to allow self as a field name.

abstract clear() → None[source]#

Delete all entities from store.

abstract delete(key: str) → None[source]#

Delete entity value from store.

abstract exists(key: str) → bool[source]#

Check if entity exists in store.

abstract get(key: str, default: str | None = None) → str | None[source]#

Get entity value from store.

Parameters:

Return type:

str | None

abstract set(key: str, value: str | None) → None[source]#

Set entity value in store.

Parameters:

Return type:

None