import type { KnowledgeNodeRecord, KnowledgeSourceRecord } from '../types.js';
export declare function isUsefulHomeGraphPageFact(fact: KnowledgeNodeRecord): boolean;
export declare function isUsefulHomeGraphPageSource(source: KnowledgeSourceRecord): boolean;
export declare function isUsefulHomeGraphPageSourceCandidate(source: KnowledgeSourceRecord, existing?: KnowledgeSourceRecord): boolean;
export declare function compareHomeGraphPageSources(left: KnowledgeSourceRecord, right: KnowledgeSourceRecord): number;
export declare function homeGraphPageSourceWeight(source: KnowledgeSourceRecord): number;
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