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on_chain_start() — langchain Function Reference

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

Function python LangChainCore MessageInterface calls 1

Entity Profile

Dependency Diagram

graph TD
  71bc8957_e840_cefe_5388_62adfe19e899["on_chain_start()"]
  4b8e5bd6_69e8_42aa_044f_63f638ae480d["FakeCallbackHandler"]
  71bc8957_e840_cefe_5388_62adfe19e899 -->|defined in| 4b8e5bd6_69e8_42aa_044f_63f638ae480d
  8fe759a2_c3e4_9e9a_b66b_f49ad3e7c3ee["on_chain_start_common()"]
  71bc8957_e840_cefe_5388_62adfe19e899 -->|calls| 8fe759a2_c3e4_9e9a_b66b_f49ad3e7c3ee
  style 71bc8957_e840_cefe_5388_62adfe19e899 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/anthropic/tests/unit_tests/_utils.py lines 172–177

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

Domain

Subdomains

Defined In

Calls

Source

Frequently Asked Questions

What does on_chain_start() do?
on_chain_start() is a function in the langchain codebase, defined in libs/partners/anthropic/tests/unit_tests/_utils.py.
Where is on_chain_start() defined?
on_chain_start() is defined in libs/partners/anthropic/tests/unit_tests/_utils.py at line 172.
What does on_chain_start() call?
on_chain_start() calls 1 function(s): on_chain_start_common.

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