import type { INode } from 'n8n-workflow';
export declare function normalizeToString(v: unknown): string;
export declare function normalizeIdsInput(v: unknown): string[];
export declare function toYYYYMMDD(dateStr: string): string;
export declare function daysDiffInclusiveUTC(aYYYYMMDD: string, bYYYYMMDD: string): number;
export declare function addDaysUTC(yyyyMMdd: string, delta: number): string;
export declare function isStrictYYYYMMDD(value: string): boolean;
export declare function safeJsonParse<T = unknown>(raw: unknown, errMsg: string, node: INode, itemIndex: number): T;