toJson method
Implementation
Map<String, dynamic> toJson() {
return {
'question': question,
'single_choice': singleChoice,
'is_mandatory': isMandatory,
'isNumeric': isNumeric,
'isRating': isRating,
'error_text': errorText,
'isStarRating': isStarRating,
'properties': properties,
'answers': answers,
'options': options.map((option) => option.toJson()).toList(),
};
}