toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (channelId != null) 'channelId': channelId!,
if (channelUrl != null) 'channelUrl': channelUrl!,
if (displayName != null) 'displayName': displayName!,
if (profileImageUrl != null) 'profileImageUrl': profileImageUrl!,
};