/**
 * @since 17-10-2023 12:39:25
 * @description This function takes a time range string (e.g. "5 minutes") and returns a start date and end date for that time range
 * - The time range must be specified with a number followed by a unit of time (e.g. "5 minutes", "3 hours", "1 day")
 * - Valid units of time are "second", "minute", "hour", "day", "week", "month", and "year"
 * - Valid units of time can be abbreviated to "s", "m", "h", "d", "w", "M", and "y"
 * - If no unit of time is specified, the default unit is "day"
 * - If the unit of time is plural (e.g. "days"), it must be pluralized using an "s"
 * - If the unit of time is abbreviated, it must be followed by an "s"
 * - The time range string must be in the format "[number] [unit of time]s?"
 * - For example, "5 minutes" is valid, but "5 minute" is not valid, and "5 m" is not valid either
 * - If the unit of time is plural (e.g. "days"), it must be pluralized using an "s"
 * - This function return {false} if the time range string is not in the correct format
 * @param {string} timeRange
*/
export declare function transformTimeRangeToDates(timeRange: string, currentDate?: Date, rangeIn?: 'past' | 'future'): false | {
    start: Date;
    end: Date;
};
export declare const isDateWithinLastNSeconds: (date: Date, seconds: number) => boolean;
export declare const isDateWithinLastNMinutes: (date: Date, minutes: number) => boolean;
export declare const isDateWithinLastNHours: (date: Date, hours: number) => boolean;
export declare const isDateWithinLastNDays: (date: Date, days: number) => boolean;
export declare const isDateWithinLastNWeeks: (date: Date, weeks: number) => boolean;
export declare const isDateWithinLastNMonths: (date: Date, months: number) => boolean;
export declare const isDateWithinLastNYears: (date: Date, years: number) => boolean;
export declare const isDateWithinLastNTimeRange: (date: Date, timeRange: string) => boolean;
/**
 * @generator Jsm
 * @author dr. Salmi <reevosolutions@gmail.com>
 * @since 26 July 2000
 * @since 29-04-2024 23:01:17
 */
export declare const isDateRangObject: (obj: any) => obj is {
    start: Date;
    end: Date;
};
export declare function calculateTimePeriod(timePeriod: {
    granularity?: "minute" | "hour" | "day" | "week" | "month" | "quarter" | "year";
    timezone?: string;
} & ({
    start: Date;
    end: Date;
    preset: "custom";
} | {
    preset: "today" | "yesterday" | "last_7_days" | "last_30_days" | "last_90_days" | "last_year";
})): {
    now: Date;
    startDate: Date;
    endDate: Date;
    granularity: "month" | "year" | "week" | "day" | "hour" | "minute" | "quarter";
    timezone: string | undefined;
    preset: string | undefined;
};