f3fi+ dZddlZddlmZddlmZddlmZddlm Z m Z ddl m Z ddl mZd ed efd Zd ed efd Zd dd ededed efdZd ed efdZy)aSerialize LangChain objects to JSON. Provides `dumps` (to JSON string) and `dumpd` (to dict) for serializing `Serializable` objects. ## Escaping During serialization, plain dicts (user data) that contain an `'lc'` key are escaped by wrapping them: `{"__lc_escaped__": {...original...}}`. This prevents injection attacks where malicious data could trick the deserializer into instantiating arbitrary classes. The escape marker is removed during deserialization. This is an allowlist approach: only dicts explicitly produced by `Serializable.to_json()` are treated as LC objects; everything else is escaped if it could be confused with the LC format. N)Any) BaseModel)_serialize_value) Serializableto_json_not_implemented) AIMessage)ChatGenerationobjreturncXt|tr|jSt|S)zReturn a default value for an object. Args: obj: The object to serialize to json if it is a Serializable object. Returns: A JSON serializable object or a SerializedNotImplemented object. ) isinstancerto_jsonrr s V/var/www/auto_recruiter/arenv/lib/python3.12/site-packages/langchain_core/load/dump.pydefaultrs%#|${{} "3 ''c>t|trt|jtrr|jjj dx}rKt|t r;|jd}|j|jjd<|S|S)aConvert nested Pydantic models to dicts for JSON serialization. Handles the special case where a `ChatGeneration` contains an `AIMessage` with a parsed Pydantic model in `additional_kwargs["parsed"]`. Since Pydantic models aren't directly JSON serializable, this converts them to dicts. Args: obj: The object to process. Returns: A copy of the object with nested Pydantic models converted to dicts, or the original object unchanged if no conversion was needed. parsedT)deep) r r messageradditional_kwargsgetr model_copy model_dump)r robj_copys r_dump_pydantic_modelsr+s 3' s{{I .{{4488B BV B vy )>>t>,7=7H7H7J**84 JrF)prettyrkwargsc d|vr d}t|t|}t|}|r*|jdd}t j |fd|i|St j |fi|S)aReturn a JSON string representation of an object. Note: Plain dicts containing an `'lc'` key are automatically escaped to prevent confusion with LC serialization format. The escape marker is removed during deserialization. Args: obj: The object to dump. pretty: Whether to pretty print the json. If `True`, the json will be indented by either 2 spaces or the amount provided in the `indent` kwarg. **kwargs: Additional arguments to pass to `json.dumps` Returns: A JSON string representation of the object. Raises: ValueError: If `default` is passed as a kwarg. rz'`default` should not be passed to dumpsindent) ValueErrorrrpopjsondumps)r rrmsg serializedr s rr%r%Fso,F7o  $C!#&J Ha(zz*>V>v>> ::j +F ++rc.t|}t|S)ayReturn a dict representation of an object. Note: Plain dicts containing an `'lc'` key are automatically escaped to prevent confusion with LC serialization format. The escape marker is removed during deserialization. Args: obj: The object to dump. Returns: Dictionary that can be serialized to json using `json.dumps`. )rrrs rdumpdr)is  $C C  r)__doc__r$typingrpydanticrlangchain_core.load._validationr langchain_core.load.serializablerrlangchain_core.messagesrlangchain_core.outputsr rrboolstrr%r)rrr4s" <R-1 ( ( (ss6', ,s ,t ,s ,s ,F!s!s!r