import { type Hex } from "viem";
export type Expect<T extends true> = T;
export declare const assertNever: (_val: never, msg: string) => never;
/**
 * If the value is already Hex, it is returned unchanged. If it's a string, number or bigint, it's converted.
 *
 * @param {string | number | bigint | Hex} val - The value to convert to Hex.
 * @returns {Hex} The Hex value.
 *
 * @example
 * ```ts
 * const hex = castToHex("0x1234");
 * const hex2 = castToHex(1234);
 * const hex3 = castToHex(BigInt(1234));
 * ```
 */
export declare const castToHex: (val: string | number | bigint | Hex) => Hex;
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