Merge dictionaries.
Merge many dicts, handling specific scenarios where a key exists in both
dictionaries but has a value of None in 'left'. In such cases, the method uses
the value from 'right' for that key in the merged dictionary.
Serializable base class.
This class is used to serialize objects to JSON.
It relies on the following methods and properties:
is_lc_serializable: Is this class serializable?
By design, even if a class inherits from Serializable, it is not serializable
by default. This is to prevent accidental serialization of objects that should
not be serialized.
get_lc_namespace: Get the namespace of the LangChain object.
During deserialization, this namespace is used to identify the correct class to instantiate.
Please see the Reviver class in langchain_core.load.load for more details.
During deserialization an additional mapping is handle classes that have moved or been renamed across package versions.
lc_secrets: A map of constructor argument names to secret ids.
lc_attributes: List of additional attribute names that should be included
as part of the serialized representation.
A single text generation output.
Generation represents the response from an "old-fashioned" LLM (string-in, string-out) that generates regular text (not chat messages).
This model is used internally by chat model and will eventually be mapped to a more
general LLMResult object, and then projected into an AIMessage object.
LangChain users working with chat models will usually access information via
AIMessage (returned from runnable interfaces) or LLMResult (available via
callbacks). Please refer to AIMessage and LLMResult for more information.
GenerationChunk, which can be concatenated with other Generation chunks.
