get_node_label() — langchain Function Reference

Architecture documentation for the get_node_label() function in graph_png.py from the langchain codebase.

Function python LangChainCore Runnables called by 1

Entity Profile

LangChainCore→ Runnables→ get_node_label() — langchain Function Reference

Dependency Diagram

graph TD
  557b796b_dd51_df06_143c_2aa6bd117a0a["get_node_label()"]
  5a670bac_6993_ecfd_ad71_f79187c3df76["PngDrawer"]
  557b796b_dd51_df06_143c_2aa6bd117a0a -->|defined in| 5a670bac_6993_ecfd_ad71_f79187c3df76
  daf54039_8ae0_cde5_b789_6cc575db8dc6["add_node()"]
  daf54039_8ae0_cde5_b789_6cc575db8dc6 -->|calls| 557b796b_dd51_df06_143c_2aa6bd117a0a
  style 557b796b_dd51_df06_143c_2aa6bd117a0a fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/graph_png.py lines 54–64

    def get_node_label(self, label: str) -> str:
        """Returns the label to use for a node.

        Args:
            label: The original label.

        Returns:
            The new label.
        """
        label = self.labels.get("nodes", {}).get(label, label)
        return f"<<B>{label}</B>>"