interface MetadataAttributes {
    /** Alchemy returns metadata {@link value} value type */
    display_type?: string;
    /** Trait value of metadata */
    value: string | number;
    /** Trait types of metadata */
    trait_type: string;
    /** Trait score */
    rarity_score?: number;
}
/**
 * Extract NFT Trait and Value
 * @internal
 */
export declare function extractTraitsAndValues(metadata: MetadataAttributes[]): {
    traits: string[];
    values: string[];
};
/**
 * Extract NFT Trait and Value
 * @internal
 */
export declare function generateTally(metadataList: MetadataAttributes[][]): any;
/**
 * This will calculate the base rarity score
 * and mutate the 'rarityScore' on the passed in meta list reference
 * @internal
 */
export declare function calculateTotalRaritybase(meta: MetadataAttributes[], tally: any, totalMetadata: number): Promise<number>;
export {};