_generate_mermaid_graph_styles() — langchain Function Reference

Architecture documentation for the _generate_mermaid_graph_styles() function in graph_mermaid.py from the langchain codebase.

Function python LangChainCore Runnables called by 1

Entity Profile

LangChainCore→ Runnables→ _generate_mermaid_graph_styles() — langchain Function Reference

Dependency Diagram

graph TD
  a89253e8_f0f1_f69d_15be_a8a5c825767f["_generate_mermaid_graph_styles()"]
  c545ef44_a033_15ff_e016_18af37277247["graph_mermaid.py"]
  a89253e8_f0f1_f69d_15be_a8a5c825767f -->|defined in| c545ef44_a033_15ff_e016_18af37277247
  6f5bf1ec_e14e_f271_08a5_0bc96c21c52a["draw_mermaid()"]
  6f5bf1ec_e14e_f271_08a5_0bc96c21c52a -->|calls| a89253e8_f0f1_f69d_15be_a8a5c825767f
  style a89253e8_f0f1_f69d_15be_a8a5c825767f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/runnables/graph_mermaid.py lines 269–274

def _generate_mermaid_graph_styles(node_colors: NodeStyles) -> str:
    """Generates Mermaid graph styles for different node types."""
    styles = ""
    for class_name, style in asdict(node_colors).items():
        styles += f"\tclassDef {class_name} {style}\n"
    return styles