ReadonlysendPicks a photo in the grid and sends it to the conversation (file, its bytes). Answers the sent message.
ReadonlysendPicks a video in the grid and sends it to the conversation (file, its bytes): the upload settings,
the encode the server's directive asks for, the upload and the app's video_attachment broadcast.
Answers the sent message.
The actions of DirectMediaPickerPhotosScreen: the methods you call on its handle while the picker is open.