NewFalsyEventHandler returns an event handler that enqueues objects that do not have annotation with key string key or whose value is falsy.

NewFalsyPredicate returns a predicate that passes objects that do not have annotation with key string key or whose value is falsy.

NewTruthyEventHandler returns an event handler that enqueues objects that do have annotation with key string key and whose value is truthy.

NewTruthyPredicate returns a predicate that passes objects that do have annotation with key string key and whose value is truthy.

Options configures a filter.