// src/utils.d.ts

export const normalise: {
    null(value: any): string | null;
    upper(value: any): string | null;
    lower(value: any): string | null;
    num(value: any): number | null;
    bool(value: any): boolean;
    date(value: any): Date | null;
    search(value: any): string | null;
};

export const delay: (ms: number) => Promise<void>;

export const date: (
    value: any,
    parseFormat?: 'excel' | 'unix' | 'unix-ms' | string
) => {
    object: () => Date;
    string: (resultFormat?: string) => string;
    date: () => Date;
} | null;

export const validate: <T>(value: T) => T;