import type { DatasetSpec, FileSpec, ParametricSpec } from './types.js';
export declare function isImageType(type: FileSpec['type']): boolean;
export declare const HEX_TAG_RE: RegExp;
export declare function isPrivateHexTag(key: string): boolean;
export declare function isRawTagValue(value: unknown): value is {
    vr: string;
    value: unknown;
};
export declare function positionalName(prefix: string, ordinal: number): string;
export declare function validateDatasetSpec(raw: unknown): DatasetSpec;
export declare function validateParametricSpec(raw: unknown): ParametricSpec;