/**
 * Checks if the given value is of type {@link DateInterval}.
 *
 * @param matcher - The value to check.
 * @returns `true` if the value is a {@link DateInterval}, otherwise `false`.
 * @group Utilities
 */
function isDateInterval(matcher) {
    return Boolean(matcher &&
        typeof matcher === "object" &&
        "before" in matcher &&
        "after" in matcher);
}
/**
 * Checks if the given value is of type {@link DateRange}.
 *
 * @param value - The value to check.
 * @returns `true` if the value is a {@link DateRange}, otherwise `false`.
 * @group Utilities
 */
function isDateRange(value) {
    return Boolean(value && typeof value === "object" && "from" in value);
}
/**
 * Checks if the given value is of type {@link DateAfter}.
 *
 * @param value - The value to check.
 * @returns `true` if the value is a {@link DateAfter}, otherwise `false`.
 * @group Utilities
 */
function isDateAfterType(value) {
    return Boolean(value && typeof value === "object" && "after" in value);
}
/**
 * Checks if the given value is of type {@link DateBefore}.
 *
 * @param value - The value to check.
 * @returns `true` if the value is a {@link DateBefore}, otherwise `false`.
 * @group Utilities
 */
function isDateBeforeType(value) {
    return Boolean(value && typeof value === "object" && "before" in value);
}
/**
 * Checks if the given value is of type {@link DayOfWeek}.
 *
 * @param value - The value to check.
 * @returns `true` if the value is a {@link DayOfWeek}, otherwise `false`.
 * @group Utilities
 */
function isDayOfWeekType(value) {
    return Boolean(value && typeof value === "object" && "dayOfWeek" in value);
}
/**
 * Checks if the given value is an array of valid dates.
 *
 * @private
 * @param value - The value to check.
 * @param dateLib - The date utility library instance.
 * @returns `true` if the value is an array of valid dates, otherwise `false`.
 */
function isDatesArray(value, dateLib) {
    return Array.isArray(value) && value.every(dateLib.isDate);
}

export { isDateAfterType, isDateBeforeType, isDateInterval, isDateRange, isDatesArray, isDayOfWeekType };
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