Predicate that checks if a value is equal to U
.
(Since version 0.9.0) Deprecated because ConstructorNames operates on types and not values and refined focuses on refining values.
(Since version 0.9.0) Deprecated because FieldNames operates on types and not values and refined focuses on refining values.
(Since version 0.9.0) The Subtype predicate is deprecated without replacement because it is lacking practical relevance.
(Since version 0.9.0) The Supertype predicate is deprecated without replacement because it is lacking practical relevance.
Module for generic predicates.