toJson method
Convert the ExchangeWithdrawContract object to a JSON representation.
Implementation
@override
Map<String, dynamic> toJson({bool visible = true}) {
return {
'owner_address': ownerAddress.toAddress(visible),
'exchange_id': exchangeId,
'token_id': BytesUtils.tryToHexString(tokenId),
'quant': quant,
}..removeWhere((key, value) => value == null);
}