import { VolumeRow, SuggestionRow, RelatedRow, DifficultyRow, SerpResult, RankedRow, OverlapRow, CompetitorRow, ContentResult } from '../types/output.js';
export declare function filterVolume(items: Record<string, unknown>[]): VolumeRow[];
export declare function filterSuggestions(items: Record<string, unknown>[]): SuggestionRow[];
export declare function filterRelated(items: Record<string, unknown>[]): RelatedRow[];
export declare function filterDifficulty(items: Record<string, unknown>[]): DifficultyRow[];
export declare function filterSerp(items: Record<string, unknown>[], targetDomain?: string): SerpResult;
export declare function filterRanked(items: Record<string, unknown>[], totalCount: number, domain: string): {
    domain: string;
    total_keywords: number;
    keywords: RankedRow[];
};
export declare function filterOverlap(items: Record<string, unknown>[], totalCount: number, domain1: string, domain2: string): {
    domain1: string;
    domain2: string;
    overlapping_keywords: number;
    keywords: OverlapRow[];
};
export declare function filterCompetitors(items: Record<string, unknown>[]): CompetitorRow[];
export declare function filterContent(items: Record<string, unknown>[], url: string): ContentResult;