declare module 'date-format' {
    function dateFormat(date?: Date): string
    function dateFormat(format: string, date?: Date): string

    namespace dateFormat {
        function asString(date?: Date): string
        function asString(format: string, date?: Date): string
        function parse(pattern: string, value: string, missingValuesDate?: Date): Date
        function now(): Date
        const ISO8601_FORMAT: string
        const ISO8601_WITH_TZ_OFFSET_FORMAT: string
        const DATETIME_FORMAT: string
        const ABSOLUTETIME_FORMAT: string
    }

    export = dateFormat
}