add() — langchain Function Reference

Architecture documentation for the __add__() function in log_stream.py from the langchain codebase.

Function python Observability Tracers

Entity Profile

Observability→ Tracers→ __add__() — langchain Function Reference

Dependency Diagram

graph TD
  0c27761a_14a2_d901_a67d_8ec1e4619066["__add__()"]
  7aee39c0_a5c9_c6ea_388c_4792f8844146["RunLogPatch"]
  0c27761a_14a2_d901_a67d_8ec1e4619066 -->|defined in| 7aee39c0_a5c9_c6ea_388c_4792f8844146
  style 0c27761a_14a2_d901_a67d_8ec1e4619066 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/tracers/log_stream.py lines 136–154

    def __add__(self, other: RunLogPatch | Any) -> RunLog:
        """Combine two `RunLogPatch` instances.

        Args:
            other: The other `RunLogPatch` to combine with.

        Raises:
            TypeError: If the other object is not a `RunLogPatch`.

        Returns:
            A new `RunLog` representing the combination of the two.
        """
        if type(other) is RunLogPatch:
            ops = self.ops + other.ops
            state = jsonpatch.apply_patch(None, copy.deepcopy(ops))
            return RunLog(*ops, state=state)

        msg = f"unsupported operand type(s) for +: '{type(self)}' and '{type(other)}'"
        raise TypeError(msg)