import { StormDateTime } from "../storm-date-time";
/**
 * Type-check to determine if `obj` is a `DateTime` object
 *
 * `isDateTime` returns true if the object passed to it has a `_symbol` property that is equal to
 * `DATE_TIME_SYMBOL`
 *
 * @param obj - the object to check
 * @returns The function isDateTime is returning a boolean value.
 */
export declare function isDateTime(obj: unknown): obj is StormDateTime;