merge_chat_generation_chunks() — langchain Function Reference

Architecture documentation for the merge_chat_generation_chunks() function in chat_generation.py from the langchain codebase.

Function python CoreAbstractions MessageSchema

Entity Profile

CoreAbstractions→ MessageSchema→ merge_chat_generation_chunks() — langchain Function Reference

Dependency Diagram

graph TD
  643325b6_ff7d_d509_3a45_a48770c71fbe["merge_chat_generation_chunks()"]
  0b5a237e_9feb_c3f3_db00_596824d6e26d["chat_generation.py"]
  643325b6_ff7d_d509_3a45_a48770c71fbe -->|defined in| 0b5a237e_9feb_c3f3_db00_596824d6e26d
  style 643325b6_ff7d_d509_3a45_a48770c71fbe fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/outputs/chat_generation.py lines 129–146

def merge_chat_generation_chunks(
    chunks: list[ChatGenerationChunk],
) -> ChatGenerationChunk | None:
    """Merge a list of `ChatGenerationChunk`s into a single `ChatGenerationChunk`.

    Args:
        chunks: A list of `ChatGenerationChunk` to merge.

    Returns:
        A merged `ChatGenerationChunk`, or `None` if the input list is empty.
    """
    if not chunks:
        return None

    if len(chunks) == 1:
        return chunks[0]

    return chunks[0] + chunks[1:]