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test_chat_prompt_template_message_class_tuples_slicing() — langchain Function Reference

Architecture documentation for the test_chat_prompt_template_message_class_tuples_slicing() function in test_chat.py from the langchain codebase.

Function python CoreAbstractions MessageSchema

Entity Profile

Dependency Diagram

graph TD
  88fca7b1_be34_994f_2ef7_5ea0b9d1f932["test_chat_prompt_template_message_class_tuples_slicing()"]
  bf3138ca_0068_68ea_f479_35376e264d13["test_chat.py"]
  88fca7b1_be34_994f_2ef7_5ea0b9d1f932 -->|defined in| bf3138ca_0068_68ea_f479_35376e264d13
  style 88fca7b1_be34_994f_2ef7_5ea0b9d1f932 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

libs/core/tests/unit_tests/prompts/test_chat.py lines 564–580

def test_chat_prompt_template_message_class_tuples_slicing() -> None:
    """Test slicing a template with message class tuples."""
    template = ChatPromptTemplate.from_messages(
        [
            (SystemMessage, "System."),
            (HumanMessage, "Human 1."),
            (AIMessage, "AI."),
            (HumanMessage, "Human 2."),
        ]
    )

    sliced = template[1:3]
    messages = sliced.format_messages()

    assert len(messages) == 2
    assert isinstance(messages[0], HumanMessage)
    assert isinstance(messages[1], AIMessage)

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Defined In

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Frequently Asked Questions

What does test_chat_prompt_template_message_class_tuples_slicing() do?
test_chat_prompt_template_message_class_tuples_slicing() is a function in the langchain codebase, defined in libs/core/tests/unit_tests/prompts/test_chat.py.
Where is test_chat_prompt_template_message_class_tuples_slicing() defined?
test_chat_prompt_template_message_class_tuples_slicing() is defined in libs/core/tests/unit_tests/prompts/test_chat.py at line 564.

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