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_on_retriever_start() — langchain Function Reference

Architecture documentation for the _on_retriever_start() function in base.py from the langchain codebase.

Function python Observability Tracers called by 2

Entity Profile

Dependency Diagram

graph TD
  936f68f6_447f_a14f_b3cf_7e3383599589["_on_retriever_start()"]
  b3ab8001_c14c_4191_ca53_2dbabc99917f["AsyncBaseTracer"]
  936f68f6_447f_a14f_b3cf_7e3383599589 -->|defined in| b3ab8001_c14c_4191_ca53_2dbabc99917f
  bf4d8a61_6642_64fa_e8e9_3dcdfaf802ca["on_retriever_start()"]
  bf4d8a61_6642_64fa_e8e9_3dcdfaf802ca -->|calls| 936f68f6_447f_a14f_b3cf_7e3383599589
  34d4aff3_df37_afe5_eda8_47ac51eeebe3["on_retriever_start()"]
  34d4aff3_df37_afe5_eda8_47ac51eeebe3 -->|calls| 936f68f6_447f_a14f_b3cf_7e3383599589
  style 936f68f6_447f_a14f_b3cf_7e3383599589 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/tracers/base.py lines 911–912

    async def _on_retriever_start(self, run: Run) -> None:
        """Process the Retriever Run upon start."""

Domain

Subdomains

Defined In

Called By

Source

Frequently Asked Questions

What does _on_retriever_start() do?
_on_retriever_start() is a function in the langchain codebase, defined in libs/core/langchain_core/tracers/base.py.
Where is _on_retriever_start() defined?
_on_retriever_start() is defined in libs/core/langchain_core/tracers/base.py at line 911.
What calls _on_retriever_start()?
_on_retriever_start() is called by 2 function(s): on_retriever_start, on_retriever_start.

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