copyWith method
Implementation
TVFData copyWith({
  List<String>? rpcMethods,
  String? chainId,
  List<String>? contractAddresses,
  List<String>? txHashes,
  dynamic requestParams,
}) {
  return TVFData(
    rpcMethods: rpcMethods ?? this.rpcMethods,
    chainId: chainId ?? this.chainId,
    contractAddresses: contractAddresses ?? this.contractAddresses,
    txHashes: txHashes ?? this.txHashes,
    requestParams: requestParams ?? this.requestParams,
  );
}