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on_chain_start_common() — langchain Function Reference

Architecture documentation for the on_chain_start_common() function in fake_callback_handler.py from the langchain codebase.

Function python LangChainCore ApiManagement called by 2

Entity Profile

Dependency Diagram

graph TD
  d07649a9_5b84_d92f_f8f6_538a794456d9["on_chain_start_common()"]
  ea671d84_7d08_f3b7_3eb4_b59396ea8e29["BaseFakeCallbackHandlerMixin"]
  d07649a9_5b84_d92f_f8f6_538a794456d9 -->|defined in| ea671d84_7d08_f3b7_3eb4_b59396ea8e29
  b9492ce8_aa12_424e_4aa4_a6c0800ddb76["on_chain_start()"]
  b9492ce8_aa12_424e_4aa4_a6c0800ddb76 -->|calls| d07649a9_5b84_d92f_f8f6_538a794456d9
  d8f156c1_6c0e_830f_d91f_3f896bd9ba7b["on_chain_start()"]
  d8f156c1_6c0e_830f_d91f_3f896bd9ba7b -->|calls| d07649a9_5b84_d92f_f8f6_538a794456d9
  style d07649a9_5b84_d92f_f8f6_538a794456d9 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/callbacks/fake_callback_handler.py lines 66–68

    def on_chain_start_common(self) -> None:
        self.chain_starts += 1
        self.starts += 1

Domain

Subdomains

Defined In

Called By

Source

Frequently Asked Questions

What does on_chain_start_common() do?
on_chain_start_common() is a function in the langchain codebase, defined in libs/langchain/tests/unit_tests/callbacks/fake_callback_handler.py.
Where is on_chain_start_common() defined?
on_chain_start_common() is defined in libs/langchain/tests/unit_tests/callbacks/fake_callback_handler.py at line 66.
What calls on_chain_start_common()?
on_chain_start_common() is called by 2 function(s): on_chain_start, on_chain_start.

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