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on_chain_start_common() — langchain Function Reference

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

Function python LangChainCore ApiManagement called by 2

Entity Profile

Dependency Diagram

graph TD
  6ba1abfc_819f_69c3_6739_700fc7fb31d5["on_chain_start_common()"]
  bd0f558e_4f69_e5aa_d113_623bbeb51c3d["BaseFakeCallbackHandlerMixin"]
  6ba1abfc_819f_69c3_6739_700fc7fb31d5 -->|defined in| bd0f558e_4f69_e5aa_d113_623bbeb51c3d
  f29c520d_aec7_4094_e6a4_0952ad5c19fe["on_chain_start()"]
  f29c520d_aec7_4094_e6a4_0952ad5c19fe -->|calls| 6ba1abfc_819f_69c3_6739_700fc7fb31d5
  384fe498_9ddc_498d_0cf1_16d50c1cc982["on_chain_start()"]
  384fe498_9ddc_498d_0cf1_16d50c1cc982 -->|calls| 6ba1abfc_819f_69c3_6739_700fc7fb31d5
  style 6ba1abfc_819f_69c3_6739_700fc7fb31d5 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/fake/callbacks.py lines 69–71

    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/core/tests/unit_tests/fake/callbacks.py.
Where is on_chain_start_common() defined?
on_chain_start_common() is defined in libs/core/tests/unit_tests/fake/callbacks.py at line 69.
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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