toJson method
Implementation
Map<String, dynamic> toJson() {
final json = <String, dynamic>{};
if (this.category != null) {
json[r'category'] = this.category;
} else {
json[r'category'] = null;
}
if (this.file != null) {
json[r'file'] = this.file;
} else {
json[r'file'] = null;
}
return json;
}