class Customer { String? id; String? name; String? phoneNumber; String? status; Customer({ this.id, this.name, this.status, this.phoneNumber, }); factory Customer.fromMap(Map map, String docID) { return Customer( id: docID, name: map['user_name'], phoneNumber: map['phone_number'], status: map['status'], ); } Map toMap() { return { 'user_name': name, 'phone_number': phoneNumber, }; } @override String toString() { return 'Customer{name: $name, phoneNumber: $phoneNumber,statis:$status}'; } }