import { Branded } from 'schemata-ts/brand';
import { SchemaExt } from 'schemata-ts/SchemaExt';
interface NaturalBrand {
    readonly Natural: unique symbol;
}
/**
 * Natural branded newtype.
 *
 * Represents integers:
 *
 * ```math
 *  { z | z ∈ ℤ, z >= 0, z <= 2 ** 53 - 1 }
 * ```
 *
 * @since 1.0.0
 * @category Model
 */
export declare type Natural = Branded<number, NaturalBrand>;
/**
 * @since 1.0.0
 * @category Model
 */
export declare type NaturalS = SchemaExt<number, Natural>;
/**
 * Natural branded newtype.
 *
 * Represents integers:
 *
 * ```math
 *  { z | z ∈ ℤ, z >= 0, z <= 2 ** 53 - 1 }
 * ```
 *
 * @since 1.0.0
 * @category Schema
 */
export declare const Natural: NaturalS;
export {};
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