import { ValidationRule } from './ValidationRule';
export declare const NOT_POSITIVE: 'NOT_POSITIVE';
export declare type NotPositive = Readonly<{
    type: 'NOT_POSITIVE';
    value: number;
}>;
export declare const NOT_A_NUMBER: 'NOT_A_NUMBER';
export declare type NotANumber = Readonly<{
    type: 'NOT_A_NUMBER';
    value: unknown;
}>;
export declare const Numbers: {
    fromNumber(): ValidationRule<number, never, number, []>;
    fromUnknown(): ValidationRule<unknown, Readonly<{
        type: "NOT_A_NUMBER";
        value: unknown;
    }>, number, []>;
    positive(): ValidationRule<number, Readonly<{
        type: "NOT_POSITIVE";
        value: number;
    }>, number, []>;
};