import { BaseError } from 'make-error';
import { Constrained } from '../../core';
export declare class InvalidPositiveIntegerError extends BaseError {
    constructor();
}
export declare const positiveIntegerSymbol: unique symbol;
export type PositiveInteger = Constrained<typeof positiveIntegerSymbol, number>;
export declare function isPositiveInteger(input: unknown): input is PositiveInteger;
export declare function positiveInteger(input: unknown): PositiveInteger;