/**
 * Get the revert reason from just a transaction hash
 * @param {string} txHash - Hash of an Ethereum transaction
 * @param {object} tx - Ethereum transaction object
 * @param {string} network - Ethereum network name
 * @param {number || string} blockNumber - A block number or 'latest' to make the call from
 * @param {*} customProvider - Custom provider (Only ethers and web3 providers are supported at thsitime)
 */
export declare function getRevertReason(txHash: string | null, _tx: any, // custom addition
network?: string, blockNumber?: number | undefined | string, customProvider?: any): Promise<any>;
