/**
 * A type that is either null or undefined.
 */
export type Nullish = null | undefined;
/**
 * Returns `true` if the value is null or undefined.
 * @param value The value to check.
 *
 * @example
 * ```typescript
 * isNullish(null); // => true
 * isNullish(undefined); // => true
 * isNullish(''); // => false
 * isNullish(' '); // => false
 * isNullish('a'); // => false
 * isNullish(0); // => false
 * ```
 *
 * @example
 * ```typescript
 * const foo: string | null = null;
 * if (isNullish(foo)) {
 *   const bar = foo; // bar :: null
 * }
 * ```
 */
declare const isNullish: (value: unknown) => value is Nullish;
export default isNullish;
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