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on_chain_start() — langchain Function Reference

Architecture documentation for the on_chain_start() function in callbacks.py from the langchain codebase.

Function python LangChainCore Runnables calls 2 called by 1

Entity Profile

Dependency Diagram

graph TD
  913761c8_9f98_dd7a_8874_146e51b8482f["on_chain_start()"]
  97fbbdab_62ae_4a18_0986_15714bc2ccda["FakeCallbackHandler"]
  913761c8_9f98_dd7a_8874_146e51b8482f -->|defined in| 97fbbdab_62ae_4a18_0986_15714bc2ccda
  b4f12a3f_ff6d_1722_263e_77d3b2180dac["on_chain_start()"]
  b4f12a3f_ff6d_1722_263e_77d3b2180dac -->|calls| 913761c8_9f98_dd7a_8874_146e51b8482f
  a413f26c_2f87_2826_2194_973a0dfd58b7["on_chain_start_common()"]
  913761c8_9f98_dd7a_8874_146e51b8482f -->|calls| a413f26c_2f87_2826_2194_973a0dfd58b7
  b4f12a3f_ff6d_1722_263e_77d3b2180dac["on_chain_start()"]
  913761c8_9f98_dd7a_8874_146e51b8482f -->|calls| b4f12a3f_ff6d_1722_263e_77d3b2180dac
  style 913761c8_9f98_dd7a_8874_146e51b8482f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/groq/tests/unit_tests/fake/callbacks.py lines 177–182

    def on_chain_start(
        self,
        *args: Any,
        **kwargs: Any,
    ) -> Any:
        self.on_chain_start_common()

Domain

Subdomains

Defined In

Calls

Called By

Source

Frequently Asked Questions

What does on_chain_start() do?
on_chain_start() is a function in the langchain codebase, defined in libs/partners/groq/tests/unit_tests/fake/callbacks.py.
Where is on_chain_start() defined?
on_chain_start() is defined in libs/partners/groq/tests/unit_tests/fake/callbacks.py at line 177.
What does on_chain_start() call?
on_chain_start() calls 2 function(s): on_chain_start, on_chain_start_common.
What calls on_chain_start()?
on_chain_start() is called by 1 function(s): on_chain_start.

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