toJson method Null safety
Implementation
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = new Map<String, dynamic>();
data["event"] = this.event;
data["call_id"] = this.callId;
return data;
}
Map<String, dynamic> toJson() {
final Map<String, dynamic> data = new Map<String, dynamic>();
data["event"] = this.event;
data["call_id"] = this.callId;
return data;
}