toJson method
Implementation
Map toJson() {
return {
'id': id,
'type': type,
'title': title,
'username': username,
'first_name': firstName,
'last_name': lastName,
'photo': photo,
'description': description,
'invite_link': inviteLink,
'pinned_message': pinnedMessage,
'permissions': permissions,
'slow_mode_delay': slowModeDelay,
'sticker_set_name': stickerSetName,
'can_set_sticker_set': canSetStickerSet,
}..removeWhere((_, v) => v == null);
}