execution

final class CancelableFutureCatsInstances extends Monad[CancelableFuture] with StackSafeMonad[CancelableFuture] with CoflatMap[CancelableFuture] with MonadError[CancelableFuture, Throwable]

Implementation of Cats type classes for the CancelableFuture data type.

object CancelableFutureCatsInstances extends Serializable
implicit def cancelableFutureCatsInstances(implicit ec: ExecutionContext): CancelableFutureCatsInstances

Returns the associated Cats type class instances for the CancelableFuture data type.
Returns the associated Cats type class instances for the CancelableFuture data type.
ec
is the ExecutionContext needed in order to create the needed type class instances, since future transformations rely on an ExecutionContext passed explicitly (by means of an implicit parameter) on each operation
implicit def contravariantCallback[E]: Contravariant[[β$0$]Callback[E, β$0$]]

Contravariant type class instance of Callback for Cats.