A mapping from role name to counts for each of the possible backtracking reasons, where the counts apply to attempts to cast this role during the debugging window.
A mapping from role name to the number of attempts to cast that role during the debugging window.
An object recording for a given condition its number of successes and failures (across tests of the condition).
The number of times this construct was targeted during the debugging window.
Debugging information for a watched construct, capturing information about attempts to target it.
This information can be used to investigate why a construct has not been successfully targeted, especially if this is due to something like a mistyped condition.