import type { DeprecationPattern } from '../../types/index.js';
/**
 * Load deprecation patterns for a given ecosystem from the JSON config files.
 * Returns an empty array if the ecosystem is not supported, or if the file is not found or malformed.
 */
export declare function loadDeprecationPatterns(ecosystem: string, extraPatternSets?: string[]): Promise<DeprecationPattern[]>;
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