import { ValidationException } from './ValidationException';
/**
 * Is the value a BigInt?
 * See: https://developer.mozilla.org/en-US/docs/Glossary/BigInt
 *
 * @example
 * ```ts
 * isBigInt(BigInt(1)) // true
 * isBigInt(1) // false
 * ```
 *
 * @param value the value to check
 * @returns a boolean indicating whether the value is the expected type
 */
export declare const isBigInt: (value: unknown) => value is bigint;
/**
 * Validate that the value is a BigInt.
 * See: https://developer.mozilla.org/en-US/docs/Glossary/BigInt
 *
 * @example
 * ```ts
 * validateBigInt(BigInt(1)) // null
 * validateBigInt(1) // ValidationException
 * ```
 *
 * @param value the value to check
 * @returns `null` if the value is the expected type or a `ValidationException`
 * if not
 */
export declare const validateBigInt: (value: unknown) => ValidationException | null;
/**
 * Assert that the value is a BigInt.
 * See: https://developer.mozilla.org/en-US/docs/Glossary/BigInt
 *
 * @example
 * ```ts
 * assertBigInt(BigInt(1)) // void
 * assertBigInt(1) // throws AssertionException
 * ```
 *
 * @param value the value to check
 * @throws an `AssertionException` if the value is not the expected type
 */
export declare const assertBigInt: (value: unknown) => asserts value is bigint;