_load_llm_chain() — langchain Function Reference

Architecture documentation for the _load_llm_chain() function in loading.py from the langchain codebase.

Function python AgentOrchestration ClassicChains calls 1

Entity Profile

AgentOrchestration→ ClassicChains→ _load_llm_chain() — langchain Function Reference

Dependency Diagram

graph TD
  1503a8e4_6d4d_0771_d0e4_1f69d8350ed1["_load_llm_chain()"]
  61dd5a0b_3bf7_b973_6dac_edfd465b21fb["loading.py"]
  1503a8e4_6d4d_0771_d0e4_1f69d8350ed1 -->|defined in| 61dd5a0b_3bf7_b973_6dac_edfd465b21fb
  50b2ba2d_27b4_d3bb_0ff2_3f113f11320a["load_llm()"]
  1503a8e4_6d4d_0771_d0e4_1f69d8350ed1 -->|calls| 50b2ba2d_27b4_d3bb_0ff2_3f113f11320a
  style 1503a8e4_6d4d_0771_d0e4_1f69d8350ed1 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/chains/loading.py lines 72–93

def _load_llm_chain(config: dict, **kwargs: Any) -> LLMChain:
    """Load LLM chain from config dict."""
    if "llm" in config:
        llm_config = config.pop("llm")
        llm = load_llm_from_config(llm_config, **kwargs)
    elif "llm_path" in config:
        llm = load_llm(config.pop("llm_path"), **kwargs)
    else:
        msg = "One of `llm` or `llm_path` must be present."
        raise ValueError(msg)

    if "prompt" in config:
        prompt_config = config.pop("prompt")
        prompt = load_prompt_from_config(prompt_config)
    elif "prompt_path" in config:
        prompt = load_prompt(config.pop("prompt_path"))
    else:
        msg = "One of `prompt` or `prompt_path` must be present."
        raise ValueError(msg)
    _load_output_parser(config)

    return LLMChain(llm=llm, prompt=prompt, **config)