toJson method
Implementation
Map<String, String> toJson() => {
'lastBaseFeePerGas': lastBaseFeePerGas.toString(),
'maxPriorityFeePerGas': maxPriorityFeePerGas.getInWei.toString(),
'maxFeePerGas': maxFeePerGas.getInWei.toString(),
'estimatedGas': estimatedGas.toString(),
};