parseMermaidToExcalidraw(diagramDefinition: string, config?: MermaidConfig)

{
  /**
   * Whether to start the diagram automatically when the page loads.
   * @default false
   */
  startOnLoad?: boolean;
  /**
   * The flowchart curve style.
   * @default "linear"
   */
  flowchart?: {
    curve?: "linear" | "basis";
  };
  /**
   * Theme variables
   * @default { fontSize: "20px" }
   */
  themeVariables?: {
    fontSize?: string;
  };
  /**
   * Maximum number of edges to be rendered.
   * @default 500
   */
  maxEdges?: number;
  /**
   * Maximum number of characters to be rendered.
   * @default 50000
   */
  maxTextSize?: number;
}

import { parseMermaidToExcalidraw } from "@excalidraw/mermaid-to-excalidraw";
try {
  const { elements, files } = await parseMermaidToExcalidraw(
    diagramDefinition,
    {
      themeVariables: {
        fontSize: "25px",
      },
    }
  );
  // Render elements and files on Excalidraw
} catch (e) {
  // Parse error, displaying error message to users
}