import { Hardfork } from '@ethereumjs/common';
import type { TypedTransaction, TypedTxData } from '@ethereumjs/tx';
import type { Hex } from '@metamask/utils';
import type { TransactionParams } from '../types.js';
export declare const HARDFORK = Hardfork.Prague;
/**
 * Creates an `etheruemjs/tx` transaction object from the raw transaction parameters.
 *
 * @param chainId - Chain ID of the transaction.
 * @param txParams - Transaction parameters.
 * @returns The transaction object.
 */
export declare function prepareTransaction(chainId: Hex, txParams: TransactionParams): TypedTransaction;
/**
 * Serializes transaction data into a hex string.
 *
 * @param chainId - Chain ID of the transaction.
 * @param txData - The signed transaction data.
 * @returns The prefixed hex string.
 */
export declare function serializeTransaction(chainId: Hex, txData: TypedTxData): Hex;
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