load_memory_variables() — langchain Function Reference

Architecture documentation for the load_memory_variables() function in combined.py from the langchain codebase.

Function python LangChainCore Runnables

Entity Profile

LangChainCore→ Runnables→ load_memory_variables() — langchain Function Reference

Dependency Diagram

graph TD
  4a2e6218_9c03_0bcc_8ec7_3895a20b4fc9["load_memory_variables()"]
  e7b5b56d_2836_1021_bdd4_75c127a0aa35["CombinedMemory"]
  4a2e6218_9c03_0bcc_8ec7_3895a20b4fc9 -->|defined in| e7b5b56d_2836_1021_bdd4_75c127a0aa35
  style 4a2e6218_9c03_0bcc_8ec7_3895a20b4fc9 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/memory/combined.py lines 61–74

    def load_memory_variables(self, inputs: dict[str, Any]) -> dict[str, str]:
        """Load all vars from sub-memories."""
        memory_data: dict[str, Any] = {}

        # Collect vars from all sub-memories
        for memory in self.memories:
            data = memory.load_memory_variables(inputs)
            for key, value in data.items():
                if key in memory_data:
                    msg = f"The variable {key} is repeated in the CombinedMemory."
                    raise ValueError(msg)
                memory_data[key] = value

        return memory_data