import type { Hex } from '../types/signers';
export declare function toHexIfBigInt(v: unknown): unknown;
/**
 * viem txs sometimes have bigint / hex / optional fields. Ethers serializers
 * accept hex strings for numeric fields. Normalize where helpful.
 */
export declare function normalizeTxForEmblem(tx: Record<string, unknown>): Record<string, unknown>;
export declare function isHexString(value: unknown): value is Hex;
export declare function bytesToHex(bytes: ArrayLike<number>): Hex;
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