export interface GetClassesOptions {
    /**
     * Property name to use for classification
     * @default 'category'
     */
    propertyName?: string;
}
/**
 * Get class numbers for each metadata entry
 * @param metadata - Array of metadata objects
 * @param options - Options for classification
 * @returns Array of class numbers
 */
export declare function getClasses(metadata: Array<Record<string, any>>, options?: GetClassesOptions): number[];
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