Transaction.fromJson constructor
Implementation
Transaction.fromJson(Map<String, dynamic> json) {
  id = json['key'];
  type = json['type'];
  title = json['title'];
  amount = json['amount'];
  currency = json['currency'];
  date = json['date'];
  signedAmount = json['signed_amount'];
  status = json['status'];
  statusColor = json['color'];
}