get_child() — langchain Function Reference

Architecture documentation for the get_child() function in manager.py from the langchain codebase.

Function python Observability CallbackManager calls 1 called by 2

Entity Profile

Observability→ CallbackManager→ get_child() — langchain Function Reference

Dependency Diagram

graph TD
  f1a5b3c9_6772_a478_ad3a_5e2dabf4e2a3["get_child()"]
  f018c4fc_a0e5_5ff1_08db_f4838ee96e68["ParentRunManager"]
  f1a5b3c9_6772_a478_ad3a_5e2dabf4e2a3 -->|defined in| f018c4fc_a0e5_5ff1_08db_f4838ee96e68
  bb9693c0_b78d_da61_c97e_af8f234e674a["get_child()"]
  bb9693c0_b78d_da61_c97e_af8f234e674a -->|calls| f1a5b3c9_6772_a478_ad3a_5e2dabf4e2a3
  e694e06d_9c3a_9620_74b6_743814a492ce["trace_as_chain_group()"]
  e694e06d_9c3a_9620_74b6_743814a492ce -->|calls| f1a5b3c9_6772_a478_ad3a_5e2dabf4e2a3
  bb9693c0_b78d_da61_c97e_af8f234e674a["get_child()"]
  f1a5b3c9_6772_a478_ad3a_5e2dabf4e2a3 -->|calls| bb9693c0_b78d_da61_c97e_af8f234e674a
  style f1a5b3c9_6772_a478_ad3a_5e2dabf4e2a3 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/manager.py lines 569–585

    def get_child(self, tag: str | None = None) -> CallbackManager:
        """Get a child callback manager.

        Args:
            tag: The tag for the child callback manager.

        Returns:
            The child callback manager.

        """
        manager = CallbackManager(handlers=[], parent_run_id=self.run_id)
        manager.set_handlers(self.inheritable_handlers)
        manager.add_tags(self.inheritable_tags)
        manager.add_metadata(self.inheritable_metadata)
        if tag is not None:
            manager.add_tags([tag], inherit=False)
        return manager