import { MessageFunctionType, Result } from '../types';
export interface ToIntErrors {
    TARGET_IS_NOT_A_INT: MessageFunctionType;
}
export declare const TO_INT_ERRORS: ToIntErrors;
/**
 * Convert the input string to an integer,
 * or NaN if the input is not an integer.
 *
 * @param target
 * @param radix
 */
export declare function toInt(target: string, radix: number): Result<number | undefined>;