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on_retriever_start() — langchain Function Reference

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

Function python LangChainCore Runnables calls 1

Entity Profile

Dependency Diagram

graph TD
  5e025073_90c8_53e9_e01b_33049b76ba9f["on_retriever_start()"]
  97fbbdab_62ae_4a18_0986_15714bc2ccda["FakeCallbackHandler"]
  5e025073_90c8_53e9_e01b_33049b76ba9f -->|defined in| 97fbbdab_62ae_4a18_0986_15714bc2ccda
  df08d9c6_7023_2549_45fa_0483e64fcf4c["on_retriever_start_common()"]
  5e025073_90c8_53e9_e01b_33049b76ba9f -->|calls| df08d9c6_7023_2549_45fa_0483e64fcf4c
  style 5e025073_90c8_53e9_e01b_33049b76ba9f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/groq/tests/unit_tests/fake/callbacks.py lines 240–245

    def on_retriever_start(
        self,
        *args: Any,
        **kwargs: Any,
    ) -> Any:
        self.on_retriever_start_common()

Domain

Subdomains

Defined In

Calls

Source

Frequently Asked Questions

What does on_retriever_start() do?
on_retriever_start() is a function in the langchain codebase, defined in libs/partners/groq/tests/unit_tests/fake/callbacks.py.
Where is on_retriever_start() defined?
on_retriever_start() is defined in libs/partners/groq/tests/unit_tests/fake/callbacks.py at line 240.
What does on_retriever_start() call?
on_retriever_start() calls 1 function(s): on_retriever_start_common.

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