import { MessageFunctionType, Result } from "../types";
export interface IsArraySizeLessThanErrors {
    TARGET_ARGUMENT_NOT_AN_ARRAY: MessageFunctionType;
}
export declare const IS_ARRAY_SIZE_LESS_THAN_ERRORS: IsArraySizeLessThanErrors;
/**
 * Checks if array's length is less than the `constraint`.
 *
 * ### Example
 * ```
 * expect(isArraySizeLessThan([1,2], 3).value).toBeTruthy()
 * ```
 *
 * @param array The value array being checked.
 * @param constraint The minimum size of the array
 */
export declare function isArraySizeLessThan(array: any[], constraint: number): Result<boolean | undefined>;