langchain Architecture Docs
Home / Class/ SystemMessageChunk Class — langchain Architecture

SystemMessageChunk Class — langchain Architecture

Architecture documentation for the SystemMessageChunk class in system.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  6ecfa2da_6cf5_07bb_47c0_de130252dc57["SystemMessageChunk"]
  5c3ab140_4d2a_43d4_63cb_89f4c4b1a8d6["SystemMessage"]
  6ecfa2da_6cf5_07bb_47c0_de130252dc57 -->|extends| 5c3ab140_4d2a_43d4_63cb_89f4c4b1a8d6
  6a1cf81e_444c_4b27_c510_8e86e205cabb["BaseMessageChunk"]
  6ecfa2da_6cf5_07bb_47c0_de130252dc57 -->|extends| 6a1cf81e_444c_4b27_c510_8e86e205cabb
  917acef8_cb58_963a_19d6_78c620915ba0["system.py"]
  6ecfa2da_6cf5_07bb_47c0_de130252dc57 -->|defined in| 917acef8_cb58_963a_19d6_78c620915ba0

Relationship Graph

Source Code

libs/core/langchain_core/messages/system.py lines 63–70

class SystemMessageChunk(SystemMessage, BaseMessageChunk):
    """System Message chunk."""

    # Ignoring mypy re-assignment here since we're overriding the value
    # to make sure that the chunk variant can be discriminated from the
    # non-chunk variant.
    type: Literal["SystemMessageChunk"] = "SystemMessageChunk"  # type: ignore[assignment]
    """The type of the message (used for serialization)."""

Defined In

Extends

Source

Frequently Asked Questions

What is the SystemMessageChunk class?
SystemMessageChunk is a class in the langchain codebase, defined in libs/core/langchain_core/messages/system.py.
Where is SystemMessageChunk defined?
SystemMessageChunk is defined in libs/core/langchain_core/messages/system.py at line 63.
What does SystemMessageChunk extend?
SystemMessageChunk extends SystemMessage, BaseMessageChunk.

Analyze Your Own Codebase

Get architecture documentation, dependency graphs, and domain analysis for your codebase in minutes.

Try Supermodel Free