Aux sends auxiliary information over a progress interface, which will not be formatted for the UI.

ChanOutput returns an Output that writes progress updates to the supplied channel.

DiscardOutput returns an Output that discards progress.

Message is a convenience function to write a progress message to the channel.

Messagef is a convenience function to write a printf-formatted progress message to the channel.

NewProgressReader creates a new ProgressReader.

Update is a convenience function to write a progress update to the channel.

Updatef is a convenience function to write a printf-formatted progress update to the channel.

Progress represents the progress of a transfer.

Reader is a Reader with progress bar.

Output is an interface for writing progress information.