next_id() — langchain Function Reference

Architecture documentation for the next_id() function in graph.py from the langchain codebase.

Function python LangChainCore Runnables called by 1

Entity Profile

LangChainCore→ Runnables→ next_id() — langchain Function Reference

Dependency Diagram

graph TD
  417755a5_d458_ad2e_a8b0_7b8e1dcb0c46["next_id()"]
  646f3bb5_a594_563e_cfbf_e18bdc9efb90["Graph"]
  417755a5_d458_ad2e_a8b0_7b8e1dcb0c46 -->|defined in| 646f3bb5_a594_563e_cfbf_e18bdc9efb90
  5bdca968_0e0c_d6c2_7bf4_f1990e3d1d78["add_node()"]
  5bdca968_0e0c_d6c2_7bf4_f1990e3d1d78 -->|calls| 417755a5_d458_ad2e_a8b0_7b8e1dcb0c46
  style 417755a5_d458_ad2e_a8b0_7b8e1dcb0c46 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/graph.py lines 305–310

    def next_id(self) -> str:
        """Return a new unique node identifier.

        It that can be used to add a node to the graph.
        """
        return uuid4().hex