import { MessageFunctionType, Result } from '../types';
export interface IsInArrayErrors {
    TARGET_ARGUMENT_NOT_AN_ARRAY: MessageFunctionType;
}
export declare const IS_IN_ARRAY_ERRORS: IsInArrayErrors;
/**
 * Tests whether the `target` string is in the array of allowed values
 *
 * ### Example
 * ```
 * expect(().value).toBeTruthy()
 * ```
 * @param value The value that may be in the array
 * @param array The array
 */
export declare function isInArray(value: any, array: any[]): Result<boolean | undefined>;