toJson method Null safety
Implementation
Map<String, dynamic> toJson() {
final map = <String, dynamic>{};
map['mid'] = mid;
map['mindex'] = mindex;
map['type'] = type;
map['label'] = label;
map['age_ms'] = ageMs;
map['pt'] = pt;
map['rtpmap'] = rtpmap;
map['fmtp'] = fmtp;
return map;
}