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_get_parent_ids() — langchain Function Reference

Architecture documentation for the _get_parent_ids() function in event_stream.py from the langchain codebase.

Function python CoreAbstractions RunnableInterface called by 14

Entity Profile

Dependency Diagram

graph TD
  2c05b944_8b57_0ec1_2c17_2b3f4c3562c7["_get_parent_ids()"]
  7d90a3d0_d943_c43b_2fdd_f76b9bdccd55["_AstreamEventsCallbackHandler"]
  2c05b944_8b57_0ec1_2c17_2b3f4c3562c7 -->|defined in| 7d90a3d0_d943_c43b_2fdd_f76b9bdccd55
  eba20684_9ff6_3b4c_db54_51c72958ee21["tap_output_aiter()"]
  eba20684_9ff6_3b4c_db54_51c72958ee21 -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  7e0e4260_c649_7926_5bad_cfb55c871227["tap_output_iter()"]
  7e0e4260_c649_7926_5bad_cfb55c871227 -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  e23900ac_414e_24b8_9643_d43f3281b4a2["on_chat_model_start()"]
  e23900ac_414e_24b8_9643_d43f3281b4a2 -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  095bb696_11f2_5caa_de95_fa70c67c0755["on_llm_start()"]
  095bb696_11f2_5caa_de95_fa70c67c0755 -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  5ce0066a_597b_8984_5257_86b03f333f12["on_custom_event()"]
  5ce0066a_597b_8984_5257_86b03f333f12 -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  5f307e5b_1e60_af07_da9e_835f68af6b95["on_llm_new_token()"]
  5f307e5b_1e60_af07_da9e_835f68af6b95 -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  b2dca71f_0029_3088_214b_28f2cfc46a37["on_llm_end()"]
  b2dca71f_0029_3088_214b_28f2cfc46a37 -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  25b73ee9_d187_bf90_8093_8c67d1e8442b["on_chain_start()"]
  25b73ee9_d187_bf90_8093_8c67d1e8442b -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  8adf3444_0643_10f8_eecf_d39f20af454a["on_chain_end()"]
  8adf3444_0643_10f8_eecf_d39f20af454a -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  68bd61c8_48b7_bd17_2365_526f5a064b78["on_tool_start()"]
  68bd61c8_48b7_bd17_2365_526f5a064b78 -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  a3150503_96ad_fc97_6c6b_a34fdb33ce4f["on_tool_error()"]
  a3150503_96ad_fc97_6c6b_a34fdb33ce4f -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  a6966d42_8b6a_57f5_bddd_1d5339558e7a["on_tool_end()"]
  a6966d42_8b6a_57f5_bddd_1d5339558e7a -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  422aead3_a229_fd99_9dd5_bb754ae08473["on_retriever_start()"]
  422aead3_a229_fd99_9dd5_bb754ae08473 -->|calls| 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7
  style 2c05b944_8b57_0ec1_2c17_2b3f4c3562c7 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/tracers/event_stream.py lines 148–165

    def _get_parent_ids(self, run_id: UUID) -> list[str]:
        """Get the parent IDs of a run (non-recursively) cast to strings."""
        parent_ids = []

        while parent_id := self.parent_map.get(run_id):
            str_parent_id = str(parent_id)
            if str_parent_id in parent_ids:
                msg = (
                    f"Parent ID {parent_id} is already in the parent_ids list. "
                    f"This should never happen."
                )
                raise AssertionError(msg)
            parent_ids.append(str_parent_id)
            run_id = parent_id

        # Return the parent IDs in reverse order, so that the first
        # parent ID is the root and the last ID is the immediate parent.
        return parent_ids[::-1]

Domain

Subdomains

Defined In

Called By

Source

Frequently Asked Questions

What does _get_parent_ids() do?
_get_parent_ids() is a function in the langchain codebase, defined in libs/core/langchain_core/tracers/event_stream.py.
Where is _get_parent_ids() defined?
_get_parent_ids() is defined in libs/core/langchain_core/tracers/event_stream.py at line 148.
What calls _get_parent_ids()?
_get_parent_ids() is called by 14 function(s): on_chain_end, on_chain_start, on_chat_model_start, on_custom_event, on_llm_end, on_llm_new_token, on_llm_start, on_retriever_end, and 6 more.

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