PrivateconstructorThis closure is called with restricted-execution privilege.
Closure that is called with restricted-execution privilege.
Adds a callback that will be called before an item is used.
This function can't be called in restricted-execution mode.
This function can be called in early-execution mode.
This closure is called with restricted-execution privilege.
Removes a callback from being called before an item is used.
This function can't be called in restricted-execution mode.
This function can be called in early-execution mode.
Manages callbacks that fire before an item is used.