import type { GFF3FeatureLineWithRefs } from 'gff-nostream';
interface GFF3Feature {
    start: number;
    end: number;
    strand?: number;
    type: string | null;
    source: string | null;
    refName: string;
    derived_features: unknown[] | null;
    phase?: number;
    score?: number;
    subfeatures: GFF3Feature[] | undefined;
    [key: string]: unknown;
}
export declare function featureData(data: GFF3FeatureLineWithRefs): GFF3Feature;
export {};