EveSessionDriver.watchOpen

void watchOpen(SshChannelOpenOperation open,
          void  delegate(SshChannelOpenOperation)  onComplete)

Watches an in-flight channel open for terminal completion.

The callback runs after the session pump that completes the open. It is removed before invocation, allowing cancellation from inside the callback without invalidating iteration.

Parameters

`open`	Open operation to observe.
`onComplete`	Callback invoked once when `open.done`.