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/// <reference no-default-lib="true"/>

declare namespace Intl {
    interface DateTimeFormatOptions {        formatMatcher?: "basic" | "best fit" | "best fit" | undefined;        dateStyle?: "full" | "long" | "medium" | "short" | undefined;        timeStyle?: "full" | "long" | "medium" | "short" | undefined;        dayPeriod?: "narrow" | "short" | "long" | undefined;        fractionalSecondDigits?: 0 | 1 | 2 | 3 | undefined;    }
    interface ResolvedDateTimeFormatOptions {        formatMatcher?: "basic" | "best fit" | "best fit";        dateStyle?: "full" | "long" | "medium" | "short";        timeStyle?: "full" | "long" | "medium" | "short";        hourCycle?: "h11" | "h12" | "h23" | "h24";        dayPeriod?: "narrow" | "short" | "long";        fractionalSecondDigits?: 0 | 1 | 2 | 3;    }
    interface NumberFormat {        formatRange(startDate: number | bigint, endDate: number | bigint): string;        formatRangeToParts(startDate: number | bigint, endDate: number | bigint): NumberFormatPart[];    }
    /**     * The locale matching algorithm to use.     *     * [MDN](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl#Locale_negotiation).     */    type ListFormatLocaleMatcher = "lookup" | "best fit";
    /**     * The format of output message.     *     * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat#parameters).     */    type ListFormatType = "conjunction" | "disjunction" | "unit";
    /**     * The length of the formatted message.     *     * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat#parameters).     */    type ListFormatStyle = "long" | "short" | "narrow";
    /**     * An object with some or all properties of the `Intl.ListFormat` constructor `options` parameter.     *     * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat#parameters).     */    interface ListFormatOptions {        /** The locale matching algorithm to use. For information about this option, see [Intl page](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Intl#Locale_negotiation). */        localeMatcher?: ListFormatLocaleMatcher;        /** The format of output message. */        type?: ListFormatType;        /** The length of the internationalized message. */        style?: ListFormatStyle;    }
    interface ListFormat {        /**         * Returns a string with a language-specific representation of the list.         *         * @param list - An iterable object, such as an [Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array).         *         * @throws `TypeError` if `list` includes something other than the possible values.         *         * @returns {string} A language-specific formatted string representing the elements of the list.         *         * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/format).         */        format(list: Iterable<string>): string;
        /**         * Returns an Array of objects representing the different components that can be used to format a list of values in a locale-aware fashion.         *         * @param list - An iterable object, such as an [Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array), to be formatted according to a locale.         *         * @throws `TypeError` if `list` includes something other than the possible values.         *         * @returns {{ type: "element" | "literal", value: string; }[]} An Array of components which contains the formatted parts from the list.         *         * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/formatToParts).         */        formatToParts(list: Iterable<string>): { type: "element" | "literal", value: string; }[];    }
    const ListFormat: {        prototype: ListFormat;
        /**         * Creates [Intl.ListFormat](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat) objects that         * enable language-sensitive list formatting.         *         * @param locales - A string with a [BCP 47 language tag](http://tools.ietf.org/html/rfc5646), or an array of such strings.         *  For the general form and interpretation of the `locales` argument,         *  see the [`Intl` page](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl#Locale_identification_and_negotiation).         *         * @param options - An [object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/ListFormat#parameters)         *  with some or all options of `ListFormatOptions`.         *         * @returns [Intl.ListFormatOptions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat) object.         *         * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat).         */        new(locales?: BCP47LanguageTag | BCP47LanguageTag[], options?: ListFormatOptions): ListFormat;
        /**         * Returns an array containing those of the provided locales that are         * supported in list formatting without having to fall back to the runtime's default locale.         *         * @param locales - A string with a [BCP 47 language tag](http://tools.ietf.org/html/rfc5646), or an array of such strings.         *  For the general form and interpretation of the `locales` argument,         *  see the [`Intl` page](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl#Locale_identification_and_negotiation).         *         * @param options - An [object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/supportedLocalesOf#parameters).         *  with some or all possible options.         *         * @returns An array of strings representing a subset of the given locale tags that are supported in list         *  formatting without having to fall back to the runtime's default locale.         *         * [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/ListFormat/supportedLocalesOf).         */        supportedLocalesOf(locales: BCP47LanguageTag | BCP47LanguageTag[], options?: Pick<ListFormatOptions, "localeMatcher">): BCP47LanguageTag[];    };}