export interface CitationSource {
    id: number;
    title: string;
    url: string;
    snippet?: string;
    provider?: string;
}
export declare class CitationEngine {
    private sources;
    private nextId;
    addSource(title: string, url: string, snippet?: string, provider?: string): CitationSource;
    getSources(): CitationSource[];
    clear(): void;
    /**
     * Generates a markdown bibliography block
     */
    generateBibliography(): string;
}
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