A callback returning a promise. Progress state can be reported with the provided progress-object.
To report discrete progress, use increment to indicate how much work has been completed. Each call with
a increment value will be summed up and reflected as overall progress until 100% is reached (a value of
e.g. 10 accounts for 10% of work done).
Note that currently only ProgressLocation.Notification is capable of showing discrete progress.
To monitor if the operation has been cancelled by the user, use the provided CancellationToken.
Note that currently only ProgressLocation.Notification is supporting to show a cancel button to cancel the
long running operation.
The thenable the task-callback returned.
Show progress in the editor. Progress is shown while running the given callback and while the promise it returned isn't resolved nor rejected. The location at which progress should show (and other details) is defined via the passed
ProgressOptions.