imageStream property
Channel image as a stream.
The channel needs to be initialized.
If an image is provided it will be set on extraData with a key
of 'image'.
For example:
final user = User(id: 'id', image: 'https://getstream.io/image.png');
print(user.image == user.extraData['image']); // true
Implementation
Stream<String?> get imageStream {
_checkInitialized();
return extraDataStream.map((it) => it['image'] as String?);
}