interface MermaidDiagramProps {
    chart: string;
}
/**
 * Renders a single mermaid diagram from its source. Used by React-based
 * markdown renderers (e.g. MarkdownViewer) where a ```mermaid fence maps to a
 * React element rather than to an HTML marker string.
 */
export declare function MermaidDiagram({ chart }: MermaidDiagramProps): import("react/jsx-runtime").JSX.Element;
export {};
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