import { MessageFunctionType, Result } from '../types';
export interface IsSuperStringErrors {
    TARGET_ARGUMENT_NOT_A_STRING: MessageFunctionType;
    VALUE_ARGUMENT_NOT_A_STRING: MessageFunctionType;
}
export declare const IS_SUPER_STRING_ERRORS: IsSuperStringErrors;
/**
 * Checks if the string value does not contain the target.
 *
 * ### Example
 * ```
 * expect(isSuperString("fooboo", "foo").value).toBeTruthy();
 * ```
 * @param superString The value being checked.
 * @param subString The target value to perform the check against.
 */
export declare function isSuperString(superString: string, subString: string): Result<boolean | undefined>;