/**
 * BigInt validation core module
 * Provides the base validation functionality for bigint values
 */
import { type StandardSchemaV1 } from "../../Validate/standardSchema";
import type { ValidateReturnType } from "../../Validate/type";
/**
 * Return type produced by a `bigint` validator. Structurally compatible with
 * `ValidateCoreReturnType<bigint>`, but exposes the literal `"bigint"` tag
 * through the `type` field so `ValidateType<"bigint">` can map it back to the
 * `bigint` runtime type when consumed by `object()`, `union()`, and friends.
 */
export interface BigIntReturnType {
    validate: boolean;
    message: string;
    type: "bigint";
}
/**
 * Creates a bigint validator with optional validation rules
 * @template T - Array of validation rules for bigints
 * @param {T} [option] - Array of validation functions to apply
 * @param {string} [message] - Custom error message for type validation
 * @returns {Function} - Validator function that checks if the value is a bigint and applies validation rules
 */
export declare const bigint: <T extends ValidateReturnType<bigint>[]>(option?: T, message?: string) => ((value: bigint) => BigIntReturnType) & StandardSchemaV1<bigint, bigint>;