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_get_get_session_history() — langchain Function Reference

Architecture documentation for the _get_get_session_history() function in test_history.py from the langchain codebase.

Function python LangChainCore Runnables called by 19

Entity Profile

Dependency Diagram

graph TD
  e035a3b1_d1a1_c458_c801_af1fc0272f8b["_get_get_session_history()"]
  0af0dfde_fe33_f3e5_b5e6_a3d18260dc67["test_history.py"]
  e035a3b1_d1a1_c458_c801_af1fc0272f8b -->|defined in| 0af0dfde_fe33_f3e5_b5e6_a3d18260dc67
  f00b6048_fbb2_8ea1_99d8_efd8fedde6a8["test_input_messages()"]
  f00b6048_fbb2_8ea1_99d8_efd8fedde6a8 -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  99897380_ac0a_163f_7d7e_37d8089e1b87["test_input_messages_async()"]
  99897380_ac0a_163f_7d7e_37d8089e1b87 -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  974d7966_5254_bf08_09db_6d4176f81152["test_input_dict()"]
  974d7966_5254_bf08_09db_6d4176f81152 -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  f62997c2_cefe_39ab_d23c_34be867fa346["test_input_dict_async()"]
  f62997c2_cefe_39ab_d23c_34be867fa346 -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  2b466ea2_b27e_a02c_322f_f63a986e306c["test_input_dict_with_history_key()"]
  2b466ea2_b27e_a02c_322f_f63a986e306c -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  3ac85c1d_fd3a_ccf5_3f07_e378439b9add["test_input_dict_with_history_key_async()"]
  3ac85c1d_fd3a_ccf5_3f07_e378439b9add -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  49dcb0fb_e7dc_6bcc_5509_f9ba321b23c5["test_output_message()"]
  49dcb0fb_e7dc_6bcc_5509_f9ba321b23c5 -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  8016bd72_6842_8850_f0fa_ef50171a8f15["test_output_message_async()"]
  8016bd72_6842_8850_f0fa_ef50171a8f15 -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  fb914e55_cda1_4c5a_942d_fe65622ae787["test_input_messages_output_message()"]
  fb914e55_cda1_4c5a_942d_fe65622ae787 -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  43350645_b945_ac3a_b482_e4aa8dfac99c["test_input_messages_output_message_async()"]
  43350645_b945_ac3a_b482_e4aa8dfac99c -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  e95a229c_6616_58ca_5c03_a48c0650f902["test_output_messages()"]
  e95a229c_6616_58ca_5c03_a48c0650f902 -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  bfe5e716_b6ef_d97a_a9fd_0be800d4a225["test_output_messages_async()"]
  bfe5e716_b6ef_d97a_a9fd_0be800d4a225 -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  22e57df8_e0fa_02d4_e77a_0e173bf93e34["test_output_dict()"]
  22e57df8_e0fa_02d4_e77a_0e173bf93e34 -->|calls| e035a3b1_d1a1_c458_c801_af1fc0272f8b
  style e035a3b1_d1a1_c458_c801_af1fc0272f8b fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/runnables/test_history.py lines 38–51

def _get_get_session_history(
    *,
    store: dict[str, InMemoryChatMessageHistory] | None = None,
) -> Callable[..., InMemoryChatMessageHistory]:
    chat_history_store = store if store is not None else {}

    def get_session_history(
        session_id: str, **_kwargs: Any
    ) -> InMemoryChatMessageHistory:
        if session_id not in chat_history_store:
            chat_history_store[session_id] = InMemoryChatMessageHistory()
        return chat_history_store[session_id]

    return get_session_history

Domain

Subdomains

Defined In

Called By

Source

Frequently Asked Questions

What does _get_get_session_history() do?
_get_get_session_history() is a function in the langchain codebase, defined in libs/core/tests/unit_tests/runnables/test_history.py.
Where is _get_get_session_history() defined?
_get_get_session_history() is defined in libs/core/tests/unit_tests/runnables/test_history.py at line 38.
What calls _get_get_session_history()?
_get_get_session_history() is called by 19 function(s): test_get_input_schema_input_dict, test_get_input_schema_input_messages, test_get_output_messages_no_value_error, test_get_output_messages_with_value_error, test_get_output_schema, test_input_dict, test_input_dict_async, test_input_dict_with_history_key, and 11 more.

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