init() — langchain Function Reference

Architecture documentation for the __init__() function in run_collector.py from the langchain codebase.

Function python Observability Tracers

Entity Profile

Observability→ Tracers→ __init__() — langchain Function Reference

Dependency Diagram

graph TD
  38193dcd_dc5c_0ead_71ad_2cf0fb8e0fa7["__init__()"]
  c7686d6d_3f34_d781_f3ed_dce4f50f9a31["RunCollectorCallbackHandler"]
  38193dcd_dc5c_0ead_71ad_2cf0fb8e0fa7 -->|defined in| c7686d6d_3f34_d781_f3ed_dce4f50f9a31
  style 38193dcd_dc5c_0ead_71ad_2cf0fb8e0fa7 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/tracers/run_collector.py lines 19–30

    def __init__(self, example_id: UUID | str | None = None, **kwargs: Any) -> None:
        """Initialize the `RunCollectorCallbackHandler`.

        Args:
            example_id: The ID of the example being traced.
            **kwargs: Additional keyword arguments.
        """
        super().__init__(**kwargs)
        self.example_id = (
            UUID(example_id) if isinstance(example_id, str) else example_id
        )
        self.traced_runs: list[Run] = []