add() — langchain Function Reference

Architecture documentation for the add() function in utils.py from the langchain codebase.

Function python CoreAbstractions Serialization called by 4

Entity Profile

CoreAbstractions→ Serialization→ add() — langchain Function Reference

Dependency Diagram

graph TD
  df118c3e_5fa4_3c25_368f_4ae838831577["add()"]
  ca66092c_447c_d201_0d3c_cfa6ca2cc9d3["utils.py"]
  df118c3e_5fa4_3c25_368f_4ae838831577 -->|defined in| ca66092c_447c_d201_0d3c_cfa6ca2cc9d3
  7431292a_23e8_37cf_fcb4_2dd29788b135["visit_Subscript()"]
  7431292a_23e8_37cf_fcb4_2dd29788b135 -->|calls| df118c3e_5fa4_3c25_368f_4ae838831577
  e4145a88_0e13_b701_6e5e_d650adaa4193["visit_Call()"]
  e4145a88_0e13_b701_6e5e_d650adaa4193 -->|calls| df118c3e_5fa4_3c25_368f_4ae838831577
  70c5a5d3_a55a_3a49_4d0c_0b5e4e980559["visit_Name()"]
  70c5a5d3_a55a_3a49_4d0c_0b5e4e980559 -->|calls| df118c3e_5fa4_3c25_368f_4ae838831577
  fde09d3c_ec2d_8141_f314_c5f0810ab34f["visit_Attribute()"]
  fde09d3c_ec2d_8141_f314_c5f0810ab34f -->|calls| df118c3e_5fa4_3c25_368f_4ae838831577
  style df118c3e_5fa4_3c25_368f_4ae838831577 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/utils.py lines 526–538

def add(addables: Iterable[Addable]) -> Addable | None:
    """Add a sequence of addable objects together.

    Args:
        addables: The addable objects to add.

    Returns:
        The result of adding the addable objects.
    """
    final: Addable | None = None
    for chunk in addables:
        final = chunk if final is None else final + chunk
    return final