toJson method
Converts this object to JSON.
Implementation
Object toJson() {
final Map<String, Object> json = <String, Object>{};
void addIfPresent(String fieldName, Object? value) {
if (value != null) {
json[fieldName] = value;
}
}
addIfPresent('width', width);
addIfPresent('height', height);
addIfPresent('data', data);
return json;
}