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on_chain_end() — langchain Function Reference

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

Function python Observability CallbackManager calls 2 called by 4

Entity Profile

Dependency Diagram

graph TD
  3b7be403_b5f2_f25b_2714_6d61955e1332["on_chain_end()"]
  81cd9db4_6745_5fd9_98e7_4b450c8fee53["CallbackManagerForChainRun"]
  3b7be403_b5f2_f25b_2714_6d61955e1332 -->|defined in| 81cd9db4_6745_5fd9_98e7_4b450c8fee53
  093c841a_166d_5740_b357_6299063e562a["on_chain_end()"]
  093c841a_166d_5740_b357_6299063e562a -->|calls| 3b7be403_b5f2_f25b_2714_6d61955e1332
  90e4f83d_bcd8_a8fa_abde_76f469443983["on_chain_end()"]
  90e4f83d_bcd8_a8fa_abde_76f469443983 -->|calls| 3b7be403_b5f2_f25b_2714_6d61955e1332
  e694e06d_9c3a_9620_74b6_743814a492ce["trace_as_chain_group()"]
  e694e06d_9c3a_9620_74b6_743814a492ce -->|calls| 3b7be403_b5f2_f25b_2714_6d61955e1332
  57f655ed_89b3_c486_de7e_73ebe360134a["atrace_as_chain_group()"]
  57f655ed_89b3_c486_de7e_73ebe360134a -->|calls| 3b7be403_b5f2_f25b_2714_6d61955e1332
  8964b4e9_440e_18a7_2a15_a54a0b2b733c["handle_event()"]
  3b7be403_b5f2_f25b_2714_6d61955e1332 -->|calls| 8964b4e9_440e_18a7_2a15_a54a0b2b733c
  093c841a_166d_5740_b357_6299063e562a["on_chain_end()"]
  3b7be403_b5f2_f25b_2714_6d61955e1332 -->|calls| 093c841a_166d_5740_b357_6299063e562a
  style 3b7be403_b5f2_f25b_2714_6d61955e1332 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/manager.py lines 858–877

    def on_chain_end(self, outputs: dict[str, Any] | Any, **kwargs: Any) -> None:
        """Run when chain ends running.

        Args:
            outputs: The outputs of the chain.
            **kwargs: Additional keyword arguments.

        """
        if not self.handlers:
            return
        handle_event(
            self.handlers,
            "on_chain_end",
            "ignore_chain",
            outputs,
            run_id=self.run_id,
            parent_run_id=self.parent_run_id,
            tags=self.tags,
            **kwargs,
        )

Domain

Subdomains

Defined In

Calls

Called By

Source

Frequently Asked Questions

What does on_chain_end() do?
on_chain_end() is a function in the langchain codebase, defined in libs/core/langchain_core/callbacks/manager.py.
Where is on_chain_end() defined?
on_chain_end() is defined in libs/core/langchain_core/callbacks/manager.py at line 858.
What does on_chain_end() call?
on_chain_end() calls 2 function(s): handle_event, on_chain_end.
What calls on_chain_end()?
on_chain_end() is called by 4 function(s): atrace_as_chain_group, on_chain_end, on_chain_end, trace_as_chain_group.

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