Optional
messages: BaseMessage<MessageStructure, MessageType>[]A path to the module that contains the class, eg. ["langchain", "llms"] Usually should be the same as the entrypoint the class is exported from.
A map of aliases for constructor args. Keys are the attribute names, e.g. "foo". Values are the alias that will replace the key in serialization. This is used to eg. make argument names match Python.
A map of additional attributes to merge with constructor args. Keys are the attribute names, e.g. "foo". Values are the attribute values, which will be serialized. These attributes need to be accepted by the constructor as arguments.
The final serialized identifier for the module.
A map of secrets, which will be omitted from serialization. Keys are paths to the secret in constructor args, e.g. "foo.bar.baz". Values are the secret ids, which will be used when deserializing.
A manual list of keys that should be serialized. If not overridden, all fields passed into the constructor will be serialized.
This is a convenience method for adding an AI message string to the store. Please note that this is a convenience method. Code should favor the bulk addMessages interface instead to save on round-trips to the underlying persistence layer. This method may be deprecated in a future release.
Method to add a new message to the ChatMessageHistory instance.
The BaseMessage instance to add.
A promise that resolves when the message has been added.
Add a list of messages.
Implementations should override this method to handle bulk addition of messages in an efficient manner to avoid unnecessary round-trips to the underlying store.
A list of BaseMessage objects to store.
This is a convenience method for adding a human message string to the store. Please note that this is a convenience method. Code should favor the bulk addMessages interface instead to save on round-trips to the underlying persistence layer. This method may be deprecated in a future release.
Method to clear all the messages from the ChatMessageHistory instance.
A promise that resolves when all messages have been cleared.
Method to get all the messages stored in the ChatMessageHistory instance.
Array of stored BaseMessage instances.
Static
lc_The name of the serializable. Override to provide an alias or to preserve the serialized module name in minified environments.
Implemented as a static method to support loading logic.
Class for storing chat message history in-memory. It extends the BaseListChatMessageHistory class and provides methods to get, add, and clear messages.